Citazione Stile APA (7a Edizione)

Watkins, G. S. 1. . e. (1951). Labor in the American economy. The American Academy of Political and Social Science.

Citazione stile Chigago Style (17a edizione)

Watkins, Gordon S 1889- ed. Labor in the American Economy. Philadelphia: The American Academy of Political and Social Science, 1951.

Citatione MLA (9a ed.)

Watkins, Gordon S 1889- ed. Labor in the American Economy. The American Academy of Political and Social Science, 1951.