Christy, Geraldine. Step by step art school. Pastels / Geraldine Christy. - 1st ed. - London : Hamlyn, 1992. - 141 p. : col. ill. ; 28 cm. Includes index. ISBN: 9780753707135 (pbk.) LCCN: 93142730 Subjects--Topical Terms: Pastel drawing--Technique. Dewey Class. No.: 741.235 / CHR