APA(7版)引用形式

Buenaventura, V. A., De Leon, I. C., & Buenaventura, L. C. L. (2006). English proficiency for the call center agent: Level 1. Great Books Pub.

Chicagoスタイル(17版)引用形式

Buenaventura, Villy Ath, Ianthe C. De Leon, , Luis Carmelo L. Buenaventura. English Proficiency for the Call Center Agent: Level 1. Quezon City: Great Books Pub, 2006.

MLA(9版)引用形式

Buenaventura, Villy Ath, et al. English Proficiency for the Call Center Agent: Level 1. Great Books Pub, 2006.