Παραπομπή APA

Dersal, W. R. V. (1962). Successful supervision in government and business. Harper.

Παραπομπή Chicago Style

Dersal, William R Van. Successful Supervision in Government and Business. New York: Harper, 1962.

Παραπομπή MLA

Dersal, William R Van. Successful Supervision in Government and Business. Harper, 1962.