Robertson, John K. Introduction to optics : geometrical and physical / John K. Robertson. - 4th ed. - New York : D. Van Nostrand, 1967. - xv, 416 p. : ill. ; 22 cm. - University physics series. . Includes index. 328 328 Subjects--Topical Terms: Light and related radiation. Dewey Class. No.: 535.3 / R545i