APA استشهاد

Boyd,, H. W. (2003). Marketing Research: Text and Cases. Richard Irwin.

استشهاد بنمط شيكاغو

Boyd,, Harper W. Marketing Research: Text and Cases. Delhi: Richard Irwin, 2003.

MLA استشهاد

Boyd,, Harper W. Marketing Research: Text and Cases. Richard Irwin, 2003.