Tandy & Feener 1985. Geographic variation in species of the Bufo blanfordi group (Amphibia: Anura: Bufonidae) and description of a new species. Schuchmann, K.-L.[Ed]. Proceedings of the International Symposium on African Vertebrates: systematics, phylogeny and evolutionary ecology., Museum Alexander Koenig, Bonn, 1985: 1-585. Chapter pagination: 549-585