APA aipamena

Guffey, M. E., & Du-Babcock, B. (2014). Essentials of business communication (6th edition, Philippine edition.). Cengage Learning Asia Pte Ltd (Philippine Branch).

Chicago Style aipamena

Guffey, 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 aipamena

Guffey, Mary Ellen, and Bertha Du-Babcock. Essentials of Business Communication. 6th edition, Philippine edition. Cengage Learning Asia Pte Ltd (Philippine Branch), 2014.