Leggett, G. H., Kramer, M. G., & Mead, C. D. (1991). Prentice Hall handbook for writers (11th ed.). Prentice Hall.
Cita Chicago (17th ed.)Leggett, Glenn H., Melinda G. Kramer, i C. David Mead. Prentice Hall Handbook for Writers. 11th ed. Englewood Cliffs, N.J.: Prentice Hall, 1991.
Cita MLA (9th ed.)Leggett, Glenn H., et al. Prentice Hall Handbook for Writers. 11th ed. Prentice Hall, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.