APA استشهاد

Trewartha, G. T. (1968). introduction to climate (4th ed.). McGraw-Hill.

استشهاد بنمط شيكاغو

Trewartha, Glenn T. Introduction to Climate. 4th ed. Tokyo: McGraw-Hill, 1968.

MLA استشهاد

Trewartha, Glenn T. Introduction to Climate. 4th ed. McGraw-Hill, 1968.