Allen, L. A. (1975). Professional management: New concepts and proven practices. Tata McGraw-Hill.
Chicago Style citaatAllen, Louis A. Professional Management: New Concepts and Proven Practices. Tata McGraw-Hill, 1975.
MLA citatieAllen, Louis A. Professional Management: New Concepts and Proven Practices. Tata McGraw-Hill, 1975.
Let op: Deze citaties zijn niet altijd 100% accuraat.