Nicks, O. W. (1970). This island Earth. Scientific and Technical Information Division, Office of Technology Utilization, National Aeronautics and Space Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.].
Παραπομπή σε μορφή Chicago (17η εκδ.)Nicks, Oran W. This Island Earth. Washington, D.C.: Scientific and Technical Information Division, Office of Technology Utilization, National Aeronautics and Space Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1970.
Παραπομπή σε μορφή MLA (8th εκδ.)Nicks, Oran W. This Island Earth. Scientific and Technical Information Division, Office of Technology Utilization, National Aeronautics and Space Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1970.
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