Παραπομπή APA

Webb,Sidney, & Webb, B. P. (1975). Methods of social study. [London]: London School of Economics and Political Science.

Παραπομπή Chicago Style

Webb,Sidney , and Beatrice Potter Webb. Methods of Social Study. [London]: London School of Economics and Political Science, 1975.

Παραπομπή MLA

Webb,Sidney , and Beatrice Potter Webb. Methods of Social Study. [London]: London School of Economics and Political Science, 1975.

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