APA (7th ed.) Citation

Barnard, C. I. (1968). Functions of the executive (30th anniversary ed.). Harvard University Press.

Chicago Style (17th ed.) Citation

Barnard, Chester Irving. Functions of the Executive. 30th anniversary ed. Cambridge (Mass.) [etc.]: Harvard University Press, 1968.

MLA (9th ed.) Citation

Barnard, Chester Irving. Functions of the Executive. 30th anniversary ed. Harvard University Press, 1968.