APA استشهاد

Hazen, C. D., & Verma, s. (1971). Modern Europe Up to 195 (4th ed.). S. Chand.

استشهاد بنمط شيكاغو

Hazen, Charles Downer, و s.P Verma. Modern Europe Up to 195. 4th ed. Delhi: S. Chand, 1971.

MLA استشهاد

Hazen, Charles Downer, و s.P Verma. Modern Europe Up to 195. 4th ed. S. Chand, 1971.