Walter, Theodore D. Perspective sketches / Theodore D. Walter - 3rd. ed. - West Lafayette, ind. : PDA Publishers , 1977c, 1972 - 281p. : ill. ; 23 x 29 cm. Includes index ISBN: 0914886061 Subjects--Topical Terms: PerspectivaDibujo arquitectónicoDibujo LC Class. No.: NA 2710 / W35 1977