APA (7th ed.) Citation

Cogwill, D. O. (1986). Aging around the world. Wadsworth.

Chicago Style (17th ed.) Citation

Cogwill, Donald O. Aging Around the World. Belmont, Calif: Wadsworth, 1986.

MLA (9th ed.) Citation

Cogwill, Donald O. Aging Around the World. Wadsworth, 1986.