Aerial spray deposits from a Hiller Helicopter and Piper Super Cub fitted with r
Cuaig, R.D.M.
Aerial spray deposits from a Hiller Helicopter and Piper Super Cub fitted with r - London 1970 - 16 p. - No. 19; Anti-Locust Research C .
Aerial spray deposits from a Hiller Helicopter and Piper Super Cub fitted with r - London 1970 - 16 p. - No. 19; Anti-Locust Research C .