Hester,Jeff, & Hester, J. J. (2007). 21st century astronomy (2nd ed.). New York: W.W. Norton.
Style de citation ChicagoHester,Jeff, et John Jeffrey Hester. 21st Century Astronomy. 2nd ed. New York: W.W. Norton, 2007.
Style de citation MLAHester,Jeff, et John Jeffrey Hester. 21st Century Astronomy. 2nd ed. New York: W.W. Norton, 2007.
Attention : ces citations peuvent ne pas être correctes à 100%.