TY - BOOK AU - Chiles, James R. TI - The god machine : : from boomerangs to black hawks, the story of the helicopter SN - 9780553804478 U1 - 629.133352 CHI PY - 2007/// CY - New York, N.Y. PB - : Bantam Book KW - Helicopters -- History KW - ;Helicopters KW - ;Engineering & Applied operations KW - ;James R. Chiles KW - ;Bantam Book ER -