APA引文

Shook, R. L., & Shook, H. M. (1975). Complete professional salesman. Noble books.

Chicago Edition Citation

Shook, Robert L., and Herbert M. Shook. Complete Professional Salesman. London: Noble books, 1975.

MLA引文

Shook, Robert L., and Herbert M. Shook. Complete Professional Salesman. Noble books, 1975.