APA引文

Leypoldt, M. M. (1971). Learning is change. Judson.

芝加哥风格引文

Leypoldt, Martha M. Learning Is Change. Valley Forge: Judson, 1971.

MLA引文

Leypoldt, Martha M. Learning Is Change. Judson, 1971.

警告：这些引文格式不一定是100％准确.