Gleason, J. B., & Ratner, N. B. (2009). The development of language (7th ed., international ed.). Pearson.
Cita Chicago (17th ed.)Gleason, Jean Berko, i Nan Bernstein Ratner. The Development of Language. 7th ed., international ed. Boston, Mass: Pearson, 2009.
Cita MLA (9th ed.)Gleason, Jean Berko, i Nan Bernstein Ratner. The Development of Language. 7th ed., international ed. Pearson, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.