APA (7th ed.) Citation

Leichty, V. E. (1964). Discovering English. (1a. ed.). Prentice - Hall.

Chicago Style (17th ed.) Citation

Leichty, V. E. Discovering English. 1a. ed. Estados Unidos: Prentice - Hall, 1964.

MLA (9th ed.) Citation

Leichty, V. E. Discovering English. 1a. ed. Prentice - Hall, 1964.