APA
Kaufmann W. J., . (1979). Planets and moons. San Francisco: W. H. Freeman.
Chicago
Kaufmann William J, . 1979. Planets and moons. San Francisco: W. H. Freeman.
Harvard
Kaufmann W. J., . (1979). Planets and moons. San Francisco: W. H. Freeman.
MLA
Kaufmann William J, . Planets and moons. San Francisco: W. H. Freeman. 1979.