Jacobs, Mark. Photography in focus : : a basic text / [electronic resource] / Mark Jacobs, Ken Kokrda.. — New 3rd ed.. — Lincolnwood, Ill., U.S.A. : : National Textbook Co.,, c1985.. — 248 p. : : ill. ; 24 cm. Includes index. Bibliography: p. 237-243. ISBN: 0844254193 (pbk.) 9780844254197 (pbk.) LCCN: 84060593 Subjects--Topical Terms: Photography. LC Class. No.: TR146 / .J3 1985 Dewey Class. No.: 770