APA (7th ed.) Citation

Hart, N. A., & Humphrey, G. (1990). The Professional adviser's guide to marketing. Mercury Books.

Chicago Style (17th ed.) Citation

Hart, Norman A., and Geoff Humphrey. The Professional Adviser's Guide to Marketing. London: Mercury Books, 1990.

MLA (8th ed.) Citation

Hart, Norman A., and Geoff Humphrey. The Professional Adviser's Guide to Marketing. Mercury Books, 1990.