Whiting, Percy H.
The five great problems of salesmen and how to solve them / Percy H. Whiting - London : McGraw-Hill, 1964. - xii, 291 p. ; 22 cm.
Salesmen & Salesmanship
658.85 / WHF
The five great problems of salesmen and how to solve them / Percy H. Whiting - London : McGraw-Hill, 1964. - xii, 291 p. ; 22 cm.
Salesmen & Salesmanship
658.85 / WHF