Matthews, J.P, The pilchard of south west Africa (Sardinops ocellata) and the Marsbanker (Trachurus trachurus) : : bird predators, 1957 - 1958 / J. P. Matthews. - 35 páginas : il. - Investigational report; no. 3 . Subjects--Topical Terms: ALIMENTACION.AVES.PHALACROCORAX CAPENSIS.SPHENISCUS DEMERSA.SULA CAPENSIS. Dewey Class. No.: FOLLETOS