Cita APA (7th ed.)

McHatton, R. J., & Oliveira Santos, M. C. (1990). Telemarketing total (1a. ed.). McGraw-Hill.

Cita Chicago (17th ed.)

McHatton, Robert J., i Maria Claudia Oliveira Santos. Telemarketing Total. 1a. ed. Sao Paulo: McGraw-Hill, 1990.

Cita MLA (9th ed.)

McHatton, Robert J., i Maria Claudia Oliveira Santos. Telemarketing Total. 1a. ed. McGraw-Hill, 1990.