Cita APA (7a ed.)

Greene, H. A., & Petty, W. T. (1963). Developing language skills in the elementary schools (2d ed.). Allyn and Bacon.

Cita Chicago Style (17a ed.)

Greene, Harry Andrew, y Walter Thomas Petty. Developing Language Skills in the Elementary Schools. 2d ed. Boston: Allyn and Bacon, 1963.

Cita MLA (9a ed.)

Greene, Harry Andrew, y Walter Thomas Petty. Developing Language Skills in the Elementary Schools. 2d ed. Allyn and Bacon, 1963.