Leggett, G. (1978). Essentials of grammar and composition. Prentice Hall.
Cita Chicago (17th ed.)Leggett, Glenn. Essentials of Grammar and Composition. Prentice Hall, 1978.
Cita MLA (9th ed.)Leggett, Glenn. Essentials of Grammar and Composition. Prentice Hall, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.