APA引文

Welsch, G. A. (1970). Programmed learning aid for intermediate accounting. Learning Systems Co.

芝加哥风格引文

Welsch, Glenn A. Programmed Learning Aid for Intermediate Accounting. Homewood, Ill.: Learning Systems Co, 1970.

MLA引文

Welsch, Glenn A. Programmed Learning Aid for Intermediate Accounting. Learning Systems Co, 1970.

警告:这些引文格式不一定是100%准确.