APA引文

Manned Spacecraft Center (U.S.) & United States. National Aeronautics and Space Administration. (1970). Earth resources program: Synopsis of activity. The Center.

Chicago Style (17th ed.) Citation

Manned Spacecraft Center (U.S.) and United States. National Aeronautics and Space Administration. Earth Resources Program: Synopsis of Activity. Houston: The Center, 1970.

MLA引文

Manned Spacecraft Center (U.S.) and United States. National Aeronautics and Space Administration. Earth Resources Program: Synopsis of Activity. The Center, 1970.

警告：這些引文格式不一定是100％准確.