Darling, D. (2003). The complete book of spaceflight from apollo 1 to zero gravity. John Wiley & Sons.
Chicago-viite (17. p.)Darling, David. The Complete Book of Spaceflight from Apollo 1 to Zero Gravity. John Wiley & Sons, 2003.
MLA-viite (8. p.)Darling, David. The Complete Book of Spaceflight from Apollo 1 to Zero Gravity. John Wiley & Sons, 2003.
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