Παραπομπή APA

Levin & Kirkpatrick. (1965). Quantitative approaches to management. McGraw hill book company.

Παραπομπή Chicago Style

Levin και Kirkpatrick. Quantitative Approaches to Management. New York: McGraw hill book company, 1965.

Παραπομπή MLA

Levin και Kirkpatrick. Quantitative Approaches to Management. McGraw hill book company, 1965.