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    2. Heliport. Your design guide

    3. Heliport. Your design guide for charter and private operations

    4. Helistop / Heliport study. Phoenix, Arizona. November 1982

    5. Resolves of the Monterey Conference on Planning for Rotorcraft and Commuter Air Transportation (Monterey, California, August 31-September 4, 1981)

    6. The planning of air stations for single-engined helicopters