Cita APA (7th ed.)
Warriner, J. E., Whitten, M. E., & Griffith, F. (1958). English grammar and composition 9. Harcourt Brace & World.
Cita Chicago (17th ed.)
Warriner, John E., Mary Evelyn Whitten, i Francis Griffith. English Grammar and Composition 9. New York: Harcourt Brace & World, 1958.
Cita MLA (9th ed.)
Warriner, John E., et al. English Grammar and Composition 9. Harcourt Brace & World, 1958.
Atenció: Aquestes cites poden no estar 100% correctes.