APA (7th ed.) Citation

Tregold, R. F., & Soddy, K. (1974). Retardo mental (11a. ed.). Médica Panamericana.

Chicago Style (17th ed.) Citation

Tregold, R. F., and K. Soddy. Retardo Mental. 11a. ed. Buenos Aires: Médica Panamericana, 1974.

MLA (9th ed.) Citation

Tregold, R. F., and K. Soddy. Retardo Mental. 11a. ed. Médica Panamericana, 1974.

Warning: These citations may not always be 100% accurate.