Van Allen, J. A. (1993). 924 elementary problems and answers in solar system astronomy. University of Iowa Press.
Style de citation Chicago (17e éd.)Van Allen, James Alfred. 924 Elementary Problems and Answers in Solar System Astronomy. Iowa City: University of Iowa Press, 1993.
Style de citation MLA (8e éd.)Van Allen, James Alfred. 924 Elementary Problems and Answers in Solar System Astronomy. University of Iowa Press, 1993.
Attention : ces citations peuvent ne pas être correctes à 100%.