Lauer, J. M. (1991). Four worlds of writing (3rd ed.). New York, NY: HarperCollins Publishers.
Chicago Style CitationLauer, Janice M. Four Worlds of Writing. 3rd ed. New York, NY: HarperCollins Publishers, 1991.
Cita MLALauer, Janice M. Four Worlds of Writing. 3rd ed. New York, NY: HarperCollins Publishers, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.