Simpson, George Gaylord, 1902-1984.
Principles of animal taxonomy / George Gaylord Simpson and ed. by L. C. Dunn. - New York : Columbia University Press, c1961. - xii, 247 p. : ill. ; 24 cm. - Columbia biological series, no. 20 .
Includes bibliographical references and index.
60013939
Animals--Classification.
QL351 / .S5 1961
591 / SIP
Principles of animal taxonomy / George Gaylord Simpson and ed. by L. C. Dunn. - New York : Columbia University Press, c1961. - xii, 247 p. : ill. ; 24 cm. - Columbia biological series, no. 20 .
Includes bibliographical references and index.
60013939
Animals--Classification.
QL351 / .S5 1961
591 / SIP