APA (7th ed.) Citation

Büdeler, W., & Helm, A. L. (1954). To other worlds: Telescopes, rockets, stars. Burke.

Chicago Style (17th ed.) Citation

Büdeler, Werner, and Alexander Leo Helm. To Other Worlds: Telescopes, Rockets, Stars. London: Burke, 1954.

MLA (9th ed.) Citation

Büdeler, Werner, and Alexander Leo Helm. To Other Worlds: Telescopes, Rockets, Stars. Burke, 1954.

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