Tohutoro APA (7th ed.)

Downing, J., & Thackray, D. V. (1974). Madurez para la lectura. Kapelusz.

Tohutoru Kātū Chicago (17th ed.)

Downing, John, me Derek V. Thackray. Madurez Para La Lectura. Buenos Aires: Kapelusz, 1974.

Tohutoro MLA (9th ed.)

Downing, John, me Derek V. Thackray. Madurez Para La Lectura. Kapelusz, 1974.