Alfred M Lucas & Peter R Stettenheim. (1972). Avian Anatomy Integument Part 2. U SA.
Chicago Edition CitationAlfred M Lucas i Peter R Stettenheim. Avian Anatomy Integument Part 2. U SA, 1972.
Cita MLAAlfred M Lucas i Peter R Stettenheim. Avian Anatomy Integument Part 2. U SA, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.