APA (7th ed.) Citation

Gallo, R. C. (1991). The human retroviruses. Academic Press.

Chicago Style (17th ed.) Citation

Gallo, Robert C. The Human Retroviruses. California: Academic Press, 1991.

MLA (9th ed.) Citation

Gallo, Robert C. The Human Retroviruses. Academic Press, 1991.

Warning: These citations may not always be 100% accurate.