Kalthoff, K. (2001). Analysis of biological development (2.).
Chicago Style aipamenaKalthoff, Klaus. Analysis of Biological Development. 2. McGraw-Hill Book Co., Boston, 2001.
MLA aipamenaKalthoff, Klaus. Analysis of Biological Development. 2. 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.