APA (7th ed.) Citation

Delaney, W. A. (1982). The 30 most common problems in management and how to solve them. National Book Store.

Chicago Style (17th ed.) Citation

Delaney, William A. The 30 Most Common Problems in Management and How to Solve Them. Manila: National Book Store, 1982.

MLA (9th ed.) Citation

Delaney, William A. The 30 Most Common Problems in Management and How to Solve Them. National Book Store, 1982.