APA استشهاد

Cottrell, A. (2000). An introduction to metallurgy (2nd ed.). Universities press.

استشهاد بنمط شيكاغو

Cottrell, Alan. An Introduction to Metallurgy. 2nd ed. India: Universities press, 2000.

MLA استشهاد

Cottrell, Alan. An Introduction to Metallurgy. 2nd ed. Universities press, 2000.