Παραπομπή APA

Smigel, E. O. (1963). Work and leisure: A contemporary social problem. New Haven, CT: College and University Press.

Παραπομπή Chicago Style

Smigel, Erwin O. Work and Leisure: A Contemporary Social Problem. New Haven, CT: College and University Press, 1963.

Παραπομπή MLA

Smigel, Erwin O. Work and Leisure: A Contemporary Social Problem. New Haven, CT: College and University Press, 1963.

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