Tohutoro APA (7th ed.)
Oberth, H., & Sorensen, T. C. (2014). Rocket into planetary space. Oldenbourg Wissenschaftsverlag GmbH.
Tohutoru Kātū Chicago (17th ed.)
Oberth, Hermann, me Trevor C. Sorensen. Rocket into Planetary Space. München, Germany: Oldenbourg Wissenschaftsverlag GmbH, 2014.
Tohutoro MLA (9th ed.)
Oberth, Hermann, me Trevor C. Sorensen. Rocket into Planetary Space. Oldenbourg Wissenschaftsverlag GmbH, 2014.
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