Weichert, Charles K. Representative chordates : a manual of comparative anatomy / Charles K. Weichert. - 2nd ed. - New York : MacGraw-Hill, c 1961. - vii, 218 p. ; ill. ; 18 cm. Includes index. 337 337 Subjects--Topical Terms: Anatomy Comparative.Income. Dewey Class. No.: 596 / W424r