APA (7th ed.) Citation

NASA Aerospace Education Services Project (U.S.). (1992). Nergal, the 4th planet: An exercise in imagination : activities for the elementary student. Aerospace Education Services Project, NASA Lewis Research Center.

Chicago Style (17th ed.) Citation

NASA Aerospace Education Services Project (U.S.). Nergal, the 4th Planet: An Exercise in Imagination : Activities for the Elementary Student. Cleveland, Ohio: Aerospace Education Services Project, NASA Lewis Research Center, 1992.

MLA (9th ed.) Citation

NASA Aerospace Education Services Project (U.S.). Nergal, the 4th Planet: An Exercise in Imagination : Activities for the Elementary Student. Aerospace Education Services Project, NASA Lewis Research Center, 1992.