Cita APA (7a ed.)

THOMAS, W. H. (2017). BASICS OF ACHIEVING PROFESSIONAL CERTIFICATION: Enhancing your credentials. CRC Press.

Cita Chicago Style (17a ed.)

THOMAS, WILLIS H. BASICS OF ACHIEVING PROFESSIONAL CERTIFICATION: Enhancing Your Credentials. [Place of publication not identified]: CRC Press, 2017.

Cita MLA (9a ed.)

THOMAS, WILLIS H. BASICS OF ACHIEVING PROFESSIONAL CERTIFICATION: Enhancing Your Credentials. CRC Press, 2017.