Biblio
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(1961). The food of amphibians.
Exploration du Parc National de l'Upemba.
(1961). A new species of toad (Bufo) from Sierra Leone..
Fieldiana. Zoology . 39, 589-594.
(1968). Amphibia.
Exploration du Parc National de la Garamba, Mission H. de Saeger. Bruxelles. 52, 1-190.
(2004). Global Amphibian Assessment.
2004,