Παραπομπή APA

Haimann, T. (1962). Professional management: Theory and practice. New york.

Παραπομπή Chicago Style

Haimann, Thoe. Professional Management: Theory and Practice. Houghton mifflin company 1962: New york, 1962.

Παραπομπή MLA

Haimann, Thoe. Professional Management: Theory and Practice. New york, 1962.