Bibliography Return to the Wild (Collins 1962) The White Impala (Collins 1969) Some Common Trees and Shrubs of Luangwa Valley (1978) Valley of the Elephants (Collins 1980) A guide to the wildlife of the Luangwa Valley (Collins 1987) Kakuli (Old Buffalo) (CBC 1996) Filmography Return to the Wild References British environmentalists 1912 births 1997 deaths