APA Citation

Llewellyn, R., & Llewellyn, R. (1941). How green was my valley. Nueva York: Macmillan.

Chicago Style Citation

Llewellyn, Richard, and Richard Llewellyn. How Green Was My Valley. Nueva York: Macmillan, 1941.

MLA Citation

Llewellyn, Richard, and Richard Llewellyn. How Green Was My Valley. Nueva York: Macmillan, 1941.

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