WEIR, C. (1977). XERTICAL ASCEN ADVENTURES OF HELICOPTER PILOT. HARCOURT BRACE.
Chicago Style (17th ed.) CitationWEIR, CHARLES. XERTICAL ASCEN ADVENTURES OF HELICOPTER PILOT. CANADA: HARCOURT BRACE, 1977.
MLA引文WEIR, CHARLES. XERTICAL ASCEN ADVENTURES OF HELICOPTER PILOT. HARCOURT BRACE, 1977.
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