APA استشهاد

Oman, C. (1968). Nelson (3rd ed.). Sphere books.

استشهاد بنمط شيكاغو

Oman, Carola. Nelson. 3rd ed. Sphere books, 1968.

MLA استشهاد

Oman, Carola. Nelson. 3rd ed. Sphere books, 1968.