TY - BOOK AU - Johnson,Wayne TI - Helicopter theory SN - 0486682307 (rustica) AV - TL716 J64 U1 - 629.133/352 20 PY - 1994/// CY - New York PB - Dover KW - Helicópteros N1 - "This Dover edition ... is an unabridged and slightly corrected republication of the work first published by the Princeton University Press, Princeton, New Jersey, in 1980" ER -