APA (7e ed.) Bronvermelding

Não informado. (1957). Soviet astronomy. American Institute of Physics.

Chicago (17e ed.) Bronvermelding

Não informado. Soviet Astronomy. New York: American Institute of Physics, 1957.

MLA (8e ed.) Bronvermelding

Não informado. Soviet Astronomy. American Institute of Physics, 1957.

Let op: Deze citaties zijn niet altijd 100% accuraat.