TY - BOOK AU - Stephen,R.J. TI - Military helicopters SN - 0531140105 (lib. bdg.) AV - UG1230 .S74 1990 U1 - 358.4/183 20 PY - 1990/// CY - New York PB - F. Watts KW - Military helicopters KW - Juvenile literature KW - Helicopters N2 - Describes the different types of helicopters used in warfare and their use over land and at sea ER -