Poole, G., Cung Thức Cần,, Nguyễn Văn An,, & Poole, L. (1969). Thám hiểm không gian. TP. HCM: Ziên hồng.
শিকাগো স্টাইলে সাইটেশনPoole, Gray., Cung Thức Cần, Nguyễn Văn An, এবং Lynn Poole. Thám Hiểm Không Gian. TP. HCM: Ziên hồng, 1969.
এমএলএ সাইটেশনPoole, Gray., Cung Thức Cần, Nguyễn Văn An, এবং Lynn Poole. Thám Hiểm Không Gian. TP. HCM: Ziên hồng, 1969.
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