APA

Leitner M. J., Leitner S. F., . (1985). Leisure in later life: a sourcebook for the provision of recreational services for elders. New York: Haworth Press.

Chicago

Leitner Michael J, Leitner Sara F, . 1985. Leisure in later life: a sourcebook for the provision of recreational services for elders. New York: Haworth Press.

Harvard

Leitner M. J., Leitner S. F., . (1985). Leisure in later life: a sourcebook for the provision of recreational services for elders. New York: Haworth Press.

MLA

Leitner Michael J, Leitner Sara F, . Leisure in later life: a sourcebook for the provision of recreational services for elders. New York: Haworth Press. 1985.