Sinnott, Edmund W. Botany : principles and problems / [by] Edmund W. Sinnott [and] Katherine S. Wilson. - 6th ed. - New York : McGraw-Hill, [c1963] - 515 p. illus. 24 cm. - McGraw-Hill publications in the botanical sciences . includes index Subjects--Topical Terms: Botany. Dewey Class. No.: 580 / S61796