APA (7th ed.) Citation

Khan, G. N. (1989). The 36 biggest mistakes sales people make and how to correct them. Prentice-Hall.

Chicago Style (17th ed.) Citation

Khan, George N. The 36 Biggest Mistakes Sales People Make and How to Correct Them. Englewood Cliffs, NJ: Prentice-Hall, 1989.

MLA (9th ed.) Citation

Khan, George N. The 36 Biggest Mistakes Sales People Make and How to Correct Them. Prentice-Hall, 1989.