Guffey, M. E., & Du-Babcock, B. (2014). Essentials of business communication (6th edition, Philippine edition.). Cengage Learning Asia Pte Ltd (Philippine Branch).
Chicago Style (17th ed.) CitationGuffey, Mary Ellen, and Bertha Du-Babcock. Essentials of Business Communication. 6th edition, Philippine edition. Pasig City: Cengage Learning Asia Pte Ltd (Philippine Branch), 2014.
MLA (9th ed.) CitationGuffey, Mary Ellen, and Bertha Du-Babcock. Essentials of Business Communication. 6th edition, Philippine edition. Cengage Learning Asia Pte Ltd (Philippine Branch), 2014.
Warning: These citations may not always be 100% accurate.