APA aipamena

WEIR, C. (1977). XERTICAL ASCEN ADVENTURES OF HELICOPTER PILOT. HARCOURT BRACE.

Chicago Style aipamena

WEIR, CHARLES. XERTICAL ASCEN ADVENTURES OF HELICOPTER PILOT. CANADA: HARCOURT BRACE, 1977.

MLA aipamena

WEIR, CHARLES. XERTICAL ASCEN ADVENTURES OF HELICOPTER PILOT. HARCOURT BRACE, 1977.