Citazione Stile APA (7a Edizione)

WESTING J H. (1969). PURCHASING MANAGEMENT MATERIALS IN MOTION. JOHN WILEY AND SONS.

Citazione stile Chigago Style (17a edizione)

WESTING J H. PURCHASING MANAGEMENT MATERIALS IN MOTION. NEW YORK: JOHN WILEY AND SONS, 1969.

Citatione MLA (9a ed.)

WESTING J H. PURCHASING MANAGEMENT MATERIALS IN MOTION. JOHN WILEY AND SONS, 1969.