Cita APA (7a ed.)

SACK, S. M., & STEINBERG, H. J. (1981). The salesperson's legal guide. Prentice-Hall.

Cita Chicago Style (17a ed.)

SACK, Steven Mitchell, y Howard Jay STEINBERG. The Salesperson's Legal Guide. New Jersey: Prentice-Hall, 1981.

Cita MLA (9a ed.)

SACK, Steven Mitchell, y Howard Jay STEINBERG. The Salesperson's Legal Guide. Prentice-Hall, 1981.