Style de citation APA

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

Style de citation Chicago

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

Style de citation MLA

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

Attention : ces citations peuvent ne pas être correctes à 100%.