Cita APA (7th ed.)

Kopal, Z. (1974). The Moon in the post-Apollo era. D. Reidel Pub. Co..

Cita Chicago (17th ed.)

Kopal, Zdeněk. The Moon in the Post-Apollo Era. Dordrecht, Holland ; Boston: D. Reidel Pub. Co., 1974.

Cita MLA (8th ed.)

Kopal, Zdeněk. The Moon in the Post-Apollo Era. D. Reidel Pub. Co., 1974.