APA استشهاد

Koupelis,Theo. (2011). In quest of the Universe (6th.). Jones and Bartlett.

استشهاد بنمط شيكاغو

Koupelis,Theo. In Quest of the Universe. 6th. Boston: Jones and Bartlett, 2011.

MLA استشهاد

Koupelis,Theo. In Quest of the Universe. 6th. Jones and Bartlett, 2011.