1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, and 2000. Schultz, Kenneth A. This polygon shapefile represents areas that were the subject of interstate territorial disputes between 1947 and 2000. The disputed areas referenc... Stanford Digital Repository.
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Hijmans, Robert J. This polygon shapefile contains the boundary of Chad (adm0). This layer is part of the Global Administrative Areas 2015 (v2.8) dataset. University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.
Hijmans, Robert J. This polygon shapefile contains the first-level administrative divisions of Chad (adm1). Level 1 divisions include regions. This layer is part of t... University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.
Hijmans, Robert J. This polygon shapefile contains the second-level administrative divisions of Chad (adm2). Level 2 divisions include departments. This layer is part... University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.
2007. Map Maker Ltd. This line shapefile contains subprefecture boundaries for Chad as of January 2007. These are the level 3 administrative units (ADM3) for Chad. This... Map Maker Ltd.
2007. Map Maker Ltd. This polygon shapefile contains subprefecture boundaries for Chad as of January 2007. These are the level 3 administrative units (ADM3) for Chad. T... Map Maker Ltd.
Hijmans, Robert J. This polygon shapefile contains the third-level administrative divisions of Chad (adm3). Level 3 divisions include sub-prefectures. This layer is p... University of California, Berkeley. Museum of Vertebrate Zoology and International Rice Research Institute.
1954, 1955, 1956, and 1957. French Equatorial Africa, Direction des mines et de la géologie. levés effectués de 1954 à 1957 par G. Gérard [and others], géologues à la Direction des Mines et de la Géologie de l'A.E.F. ; et Ch. Bizard [and ot... Direction des mines et de la géologie.
1954, 1955, 1956, and 1957. French Equatorial Africa, Direction des mines et de la géologie. levés effectués de 1954 à 1957 par G. Gérard [and others], géologues à la Direction des Mines et de la Géologie de l'A.E.F. ; et Ch. Bizard [and ot... Direction des mines et de la géologie.
1985. International Heat Flow Commission, International Association of Seismology and Physics of the Earth's Interior, and Oklahoma State University. Department of Geography. Cartography Service. This point shapefile contains heat flow data for Chad compiled from sources in 1985. Heat flow is a measure of heat loss across the surface of the ... International Heat Flow Commission.