Não informado. (1967). Tropical grasslands. Tropical Grassland Society of Australia.
Chicago (17e ed.) BronvermeldingNão informado. Tropical Grasslands. Brisbane, Australia: Tropical Grassland Society of Australia, 1967.
MLA (8e ed.) BronvermeldingNão informado. Tropical Grasslands. Tropical Grassland Society of Australia, 1967.
Let op: Deze citaties zijn niet altijd 100% accuraat.