Clark, George L. 1892-1969, The encyclopedia of microscopy / George L. Clark, - New York : Reinhold Pub. Corp, 1961. - 693 p. illus. 26 cm. Includes bibliographies. Subjects--Topical Terms: Microscopy--Encyclopedias. LC Class. No.: QH211 / .C54 Dewey Class. No.: 578.03 / CLA 1961