APA (7th ed.) Citation

Langevin, R. G. (1998). Customer focus: A strategy for success. Crisp.

Chicago Style (17th ed.) Citation

Langevin, Roger G. Customer Focus: A Strategy for Success. [Menlo Park, Calif.]: Crisp, 1998.

MLA (8th ed.) Citation

Langevin, Roger G. Customer Focus: A Strategy for Success. Crisp, 1998.