Style de citation APA

Hester, J. (2007). 21st Century Astronomy Stars and Galaxies. McGraw Hill Companies Inc.

Style de citation Chicago

Hester, Jeff. 21st Century Astronomy Stars and Galaxies. McGraw Hill Companies Inc, 2007.

Style de citation MLA

Hester, Jeff. 21st Century Astronomy Stars and Galaxies. McGraw Hill Companies Inc, 2007.

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