Trích dẫn APA

Richards, J. C. (2011). Four Corners: Work book. Anh: Cambridge University.

Trích dẫn kiểu Chicago

Richards, Jack C. Four Corners: Work Book. Anh: Cambridge University, 2011.

MLA Trích dẫn

Richards, Jack C. Four Corners: Work Book. Anh: Cambridge University, 2011.

Warning: These citations may not always be 100% accurate.