APA (7th ed.) Citation

Cushing, I., Giovanelli, M., & Snapper, G. (2015). The new English A Levels 2015: A guide to the specs. National Association for the Teaching of English (NATE).

Chicago Style (17th ed.) Citation

Cushing, Ian, Marcello Giovanelli, and Gary Snapper. The New English A Levels 2015: A Guide to the Specs. National Association for the Teaching of English (NATE), 2015.

MLA (9th ed.) Citation

Cushing, Ian, et al. The New English A Levels 2015: A Guide to the Specs. National Association for the Teaching of English (NATE), 2015.