Dyfyniad APA

SACHS, W. S. (1981). Product Planning And Management/william S.sachs. PennWell Books.

Dyfyniad Arddull Chicago

SACHS, William S. Product Planning And Management/william S.sachs. PennWell Books, 1981.

Dyfyniad MLA

SACHS, William S. Product Planning And Management/william S.sachs. PennWell Books, 1981.

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