Tolansky, S. 1907- Multiple-beam interferometry of surfaces and films / by S. Tolansky. - New York : Dover Publications 1970 - vi, 186 p. : ill. ; 22 cm. Include index ISBN: 0486622150 Subjects--Topical Terms: Interferometry.Surfaces (Technology)Metallography. Dewey Class. No.: 535.4 / TOM 1970