@article {1506,
	title = {On Rana umbraculata, a new frog from South Africa.},
	journal = {Annals of the Natal Museum},
	volume = {12},
	year = {1952},
	pages = {153-164, pls 3-6},
	author = {Bush, S.F.}
}
@article {1512,
	title = {Ecological and systematic relationships of Rana and Strongylopus in southern Natal.},
	journal = {Annals of the Natal Museum},
	year = {1979},
	pages = {797-831},
	author = {Channing, A.}
}
