Allen, L. A. (1975). Professional management: New concepts and proven practices. Tata McGraw-Hill.
Chicago Stili AlıntıAllen, Louis A. Professional Management: New Concepts and Proven Practices. Tata McGraw-Hill, 1975.
MLA AlıntıAllen, Louis A. Professional Management: New Concepts and Proven Practices. Tata McGraw-Hill, 1975.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..