APA استشهاد

Dunlop, J. T., & Vasilii, P. (1964). Labour productivity. McGraw-Hill book company.

استشهاد بنمط شيكاغو

Dunlop, John T., و P. Vasilii. Labour Productivity. New York: McGraw-Hill book company, 1964.

MLA استشهاد

Dunlop, John T., و P. Vasilii. Labour Productivity. McGraw-Hill book company, 1964.