Citazione APA

Frank, W. W., & Lapp, C. L. (1959). How to outsell the born salesman. The MacMillan Company.

Stile di citazione Chicago

Frank, William W., e Charles L. Lapp. How to Outsell the Born Salesman. New York: The MacMillan Company, 1959.

Citazione MLA

Frank, William W., e Charles L. Lapp. How to Outsell the Born Salesman. The MacMillan Company, 1959.