Simpson, George Gaylord, 1902-1984.
Principles of animal taxonomy. - New York : Columbia University Press, 1961. - 247 p. : illus. ; 24 cm. - Columbia biological series, no. 20 .
Animals--Classification.
590.12
Principles of animal taxonomy. - New York : Columbia University Press, 1961. - 247 p. : illus. ; 24 cm. - Columbia biological series, no. 20 .
Animals--Classification.
590.12
