APA (7th ed.) Citation

Heinlein, R. A. (1977). Rocketship Galileo. New English Library.

Chicago Style (17th ed.) Citation

Heinlein, Robert A. Rocketship Galileo. London: New English Library, 1977.

MLA (9th ed.) Citation

Heinlein, Robert A. Rocketship Galileo. New English Library, 1977.