APA (7th ed.) Citation

Chow, Y. (1996). The skill of sales probe: Questions you need to ask about selling. A Sterling Paperback.

Chicago Style (17th ed.) Citation

Chow, Y.C. The Skill of Sales Probe: Questions You Need to Ask About Selling. Manila: A Sterling Paperback, 1996.

MLA (9th ed.) Citation

Chow, Y.C. The Skill of Sales Probe: Questions You Need to Ask About Selling. A Sterling Paperback, 1996.