Carpio, R. C., & Encarnacion, A. M. (1981). Effective speaking. Rex Book Store.
芝加哥风格引文Carpio, Rustica C., 与 Anacleta M. Encarnacion. Effective Speaking. Manila: Rex Book Store, 1981.
MLA引文Carpio, Rustica C., 与 Anacleta M. Encarnacion. Effective Speaking. Rex Book Store, 1981.
警告：这些引文格式不一定是100％准确.