Gaya APA

杨德峰, ., DEFENG, Y. (2009). 对外汉语教学核心语法-ESSENTIAL GRAMMAR ON TEACHING CHINESE AS A SECOND LANGUAGE (Ed.1). 北京 — Beijing: 北京大学-.

Gaya MLA

杨德峰, ., DEFENG, YANG. "对外汉语教学核心语法-ESSENTIAL GRAMMAR ON TEACHING CHINESE AS A SECOND LANGUAGE". Ed.1 北京 — Beijing: 北京大学-, 2009. Text.