Style de citation APA

Bely, P. Y. (2011). A question and answer guide to astronomy.

Style de citation Chicago

Bely, Pierre Yves. A Question and Answer Guide to Astronomy. Cambridge University Press, 2011.

Style de citation MLA

Bely, Pierre Yves. A Question and Answer Guide to Astronomy. 2011.

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