Cita APA (7th ed.)

Kotler, P., & Bloom, P. N. (1984). Marketing professional services. Prentice-Hall.

Cita Chicago (17th ed.)

Kotler, Philip, i Paul N. Bloom. Marketing Professional Services. Englewood Cliffs, NJ: Prentice-Hall, 1984.

Cita MLA (8th ed.)

Kotler, Philip, i Paul N. Bloom. Marketing Professional Services. Prentice-Hall, 1984.