APA引文

Elsworth, S., & Walker, E. (1986). Grammar practice for intermediate students.

Chicago Edition Citation

Elsworth, Steve, and Elaine Walker. Grammar Practice for Intermediate Students. Hyderabad, Orient Longman, 1986.

MLA引文

Elsworth, Steve, and Elaine Walker. Grammar Practice for Intermediate Students. 1986.

警告：這些引文格式不一定是100％准確.