Gaya APA

England, W, B., Leenders, M, R. (1978). Purchasing and Materials Management . India: D.B. Taraporevala Sons & Co. Private LTD.

Gaya MLA

England, Wilbur, B.., Leenders, Michiel, R.. "Purchasing and Materials Management". India: D.B. Taraporevala Sons & Co. Private LTD, 1978. Text.