Cita APA (7a ed.)
Wren, P., Martin, H., & Rao, N. P. (2006). High school English grammar and composition. S.Chand.
Cita Chicago Style (17a ed.)
Wren, P.C, H. Martin, y N.D.V. Prasada Rao. High School English Grammar and Composition. New Delhi: S.Chand, 2006.
Cita MLA (9a ed.)
Wren, P.C, et al. High School English Grammar and Composition. S.Chand, 2006.
Precaución: Estas citas no son 100% exactas.