@book{252425,
	author = {Clark, J. D. (john Desmond) and Cole, G. H.},
	title = {Kalambo Falls prehistoric site. Vol. 1 : the geaology, palaeoecology and detailed stratigraphy of the excavations.},
	publisher = {Cambridge Univ. Press},
	year = {1969},
	address = {London},
	note = {Colección privada de Pedro Krapovickas.}
}