Войти
Нет соединения — показаны сохранённые данные

United States. Office of Scientific Research and Development. National Defense Research Committee

Detection of land mines and sound ranging
Detection of land mines and sound ranging
United States. Office of Scientific Research and Development. National Defense Research Committee
Military problems with aerosols and nonpersistant gases
Military problems with aerosols and nonpersistant gases
United States. Office of Scientific Research and Development. National Defense Research Committee
Visibility studies and some applications in the field of camouflage
Visibility studies and some applications in the field of camouflage
United States. Office of Scientific Research and Development. National Defense Research Committee