Cita APA (7a ed.)

Zbytniewski, J., & Heller, W. H. (1979). Generics-who buys: Rich shopper, poor shopper. [s.n.].

Cita Chicago Style (17a ed.)

Zbytniewski, Jo-Ann, y Walter H. Heller. Generics-who Buys: Rich Shopper, Poor Shopper. [S.l.]: [s.n.], 1979.

Cita MLA (9a ed.)

Zbytniewski, Jo-Ann, y Walter H. Heller. Generics-who Buys: Rich Shopper, Poor Shopper. [s.n.], 1979.