APA استشهاد

McGrath, K. A. (1999). World of Scientific Discovery (2nd ed.). Gale.

استشهاد بنمط شيكاغو

McGrath, Kimberley A. World of Scientific Discovery. 2nd ed. Detroit: Gale, 1999.

MLA استشهاد

McGrath, Kimberley A. World of Scientific Discovery. 2nd ed. Gale, 1999.