Dyfyniad APA

Webb, W. H. (1987). Sources of information in the social sciences: A guide to the literature (Ed.3.).

Dyfyniad Arddull Chicago

Webb, William H. Sources of Information in the Social Sciences: A Guide to the Literature. Ed.3. Chicago, American library association, 1987.

Dyfyniad MLA

Webb, William H. Sources of Information in the Social Sciences: A Guide to the Literature. Ed.3. 1987.

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