Cita APA (7th ed.)
Wren, P., Martin, H., & Rao, N. P. (2006). High school English grammar and composition. S.Chand.
Cita Chicago (17th ed.)
Wren, P.C, H. Martin, i N.D.V. Prasada Rao. High School English Grammar and Composition. New Delhi: S.Chand, 2006.
Cita MLA (9th ed.)
Wren, P.C, et al. High School English Grammar and Composition. S.Chand, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.