APA (7th ed.) Citation

Petho, E. E. (1950). Alien in the land. Bruce Humphries.

Chicago Style (17th ed.) Citation

Petho, Emery E. Alien in the Land. Bruce Humphries, 1950.

MLA (9th ed.) Citation

Petho, Emery E. Alien in the Land. Bruce Humphries, 1950.

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