APA استشهاد

Haq, B. U., & Boersma, A. (1978). Introduction to marine micropaleontology. Elsevier.

استشهاد بنمط شيكاغو

Haq, Bilal U., و Anne Boersma. Introduction to Marine Micropaleontology. New York: Elsevier, 1978.

MLA استشهاد

Haq, Bilal U., و Anne Boersma. Introduction to Marine Micropaleontology. Elsevier, 1978.