Παραπομπή σε μορφή APA (7η εκδ.)

Ullmann, J. E. (1976). Schaum's outline of theory and problems of quantitative methods in management. McGraw-Hill.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ullmann, John E. Schaum's Outline of Theory and Problems of Quantitative Methods in Management. New York: McGraw-Hill, 1976.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ullmann, John E. Schaum's Outline of Theory and Problems of Quantitative Methods in Management. McGraw-Hill, 1976.