APA (7th ed.) Citation

Barnard, C. I. (1968). The functions of the executive. National Book Store, Inc.

Chicago Style (17th ed.) Citation

Barnard, Chester I. The Functions of the Executive. Manila: National Book Store, Inc, 1968.

MLA (9th ed.) Citation

Barnard, Chester I. The Functions of the Executive. National Book Store, Inc, 1968.