APA استشهاد

Waddams, A. L. (1980). Chemicals from petroleum: An introductory survey (4th ed.). Gulf Pub. Co., Book Division.

استشهاد بنمط شيكاغو

Waddams, Austen Lawrence. Chemicals from Petroleum: An Introductory Survey. 4th ed. Houston: Gulf Pub. Co., Book Division, 1980.

MLA استشهاد

Waddams, Austen Lawrence. Chemicals from Petroleum: An Introductory Survey. 4th ed. Gulf Pub. Co., Book Division, 1980.