Bely, P., Christian, C., & Roy, J. (2010). A question and answer guide to astronomy. Cambridge University Press.
Style de citation ChicagoBely, Pierre-Yves, Carol Christian, et Jean-René Roy. A Question and Answer Guide to Astronomy. Cambridge, UK: Cambridge University Press, 2010.
Style de citation MLABely, Pierre-Yves, et al. A Question and Answer Guide to Astronomy. Cambridge University Press, 2010.
Attention : ces citations peuvent ne pas être correctes à 100%.