MLA

Paterson, Ken, Caroline Caygill, and Rebecca Sewell. A Handbook of Spoken Grammar : Strategies for Speaking Natural English. Peaslake: Delta Publishing, 2011.

APA

Paterson, K., Caygill, C., & Sewell, R. (2011). A handbook of spoken grammar : strategies for speaking natural English. Peaslake: Delta Publishing.

Chicago

Paterson, Ken, Caroline Caygill, and Rebecca Sewell. A Handbook of Spoken Grammar: Strategies for Speaking Natural English. Peaslake: Delta Publishing, 2011.