APA-Zitierstil (7. Ausg.)

Wolfe, D. B. (1990). Serving the ageless market: Strategies for selling to the fifty-plus market. McGraw-Hill.

Chicago-Zitierstil (17. Ausg.)

Wolfe, David B. Serving the Ageless Market: Strategies for Selling to the Fifty-plus Market. New York, NY [u.a.]: McGraw-Hill, 1990.

MLA-Zitierstil (9. Ausg.)

Wolfe, David B. Serving the Ageless Market: Strategies for Selling to the Fifty-plus Market. McGraw-Hill, 1990.