Author: Pilleri, G., & Gihr, M., 1977.:
Title: Observations on the Bolivian (Inia boliviensis d'Orbigny 1834) and the Amazonean Bufeo (Inia geoffrensis de Blainville 1817), with description of a new subspecies (Inia geoffrensis humboldtiana).
Description: Invest. on Cetacea, 10: pp. 11-76, 1 col. pl. and 16 pls. of halftone photos, 15 figs., tabs., refs. Plain new wrappers. - Dolphins.

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