Systema avium aethiopicarum : a systematic list of the birds of E thiopian region. - Sclater, William Lutley, 1863-1944.; American ornithologist' union; British ornithologist union ([ London] : British ornithologists' union, 1924-30)
Issued in 2 parts, 1924-1930. "Additions and corrections to pt. 11,p . [835]-863'
Keywords: Birds -- Ethiopian region