APA (7th ed.) Citation

Becker, K. (1969). Planeten, Raketen, Astronauten.

Chicago Style (17th ed.) Citation

Becker, Kurt. Planeten, Raketen, Astronauten. 1969.

MLA (9th ed.) Citation

Becker, Kurt. Planeten, Raketen, Astronauten. 1969.

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