Cita APA (7th ed.)

Beckman, T. N. 1., & Davidson, W. R. (1967). Marketing. Ronald Press.

Cita Chicago (17th ed.)

Beckman, Theodore N. 1894, i William R. Davidson. Marketing. New York: Ronald Press, 1967.

Cita MLA (9th ed.)

Beckman, Theodore N. 1894, i William R. Davidson. Marketing. Ronald Press, 1967.