Style de citation APA

Fraknoi, A., & Morrison, D. W. (2001). Voyages through the universe (2nd ed.). Harcourt College Publishers.

Style de citation Chicago

Fraknoi, Andrew, et David Wolff Morrison. Voyages Through the Universe. 2nd ed. Philadelphia: Harcourt College Publishers, 2001.

Style de citation MLA

Fraknoi, Andrew, et David Wolff Morrison. Voyages Through the Universe. 2nd ed. Harcourt College Publishers, 2001.

Attention : ces citations peuvent ne pas être correctes à 100%.