APA (7e ed.) Bronvermelding

Dela Peña, A. S. (1989). Management advisory services: Analytical approach and process. National Book Store.

Chicago (17e ed.) Bronvermelding

Dela Peña, Arsenio S. Management Advisory Services: Analytical Approach and Process. Manila: National Book Store, 1989.

MLA (9e ed.) Bronvermelding

Dela Peña, Arsenio S. Management Advisory Services: Analytical Approach and Process. National Book Store, 1989.