APA استشهاد

Boyd, H. W. (1971). Marketing management: Case b0ok. Richard D Irwin.

استشهاد بنمط شيكاغو

Boyd, Harper W. Marketing Management: Case B0ok. U.S.A: Richard D Irwin, 1971.

MLA استشهاد

Boyd, Harper W. Marketing Management: Case B0ok. Richard D Irwin, 1971.