APA-Zitierstil (7. Ausg.)

(1978). Land cover map from Landsat, 1973, with census tracts Washington urban area, D.C., MD, and VA. U.S. Geological Survey.

Chicago-Zitierstil (17. Ausg.)

Land Cover Map from Landsat, 1973, with Census Tracts Washington Urban Area, D.C., MD, and VA. Reston, VA: U.S. Geological Survey, 1978.

MLA-Zitierstil (9. Ausg.)

Land Cover Map from Landsat, 1973, with Census Tracts Washington Urban Area, D.C., MD, and VA. U.S. Geological Survey, 1978.