Delaney, W. A. (1982). The 30 most common problems in management and how to solve them. National Book Store.
Lua i Stíl Chicago (17ú heag.)Delaney, William A. The 30 Most Common Problems in Management and How to Solve Them. Manila: National Book Store, 1982.
Lua MLA (9ú heag.)Delaney, William A. The 30 Most Common Problems in Management and How to Solve Them. National Book Store, 1982.
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