APA (7th ed.) Citation

Gillam, A. (1990). The principles and practice of selling. Butterworth-Heinemann.

Chicago Style (17th ed.) Citation

Gillam, Alan. The Principles and Practice of Selling. Oxford: Butterworth-Heinemann, 1990.

MLA (8th ed.) Citation

Gillam, Alan. The Principles and Practice of Selling. Butterworth-Heinemann, 1990.

Warning: These citations may not always be 100% accurate.