Timmons, Virginia Gayheart. Art materials, techniques, ideas: : a resource book for teachers. [electronic resource] . — Worcester, Mass., : Davis Publications, [1974]. — 167 p. : illus. 27 cm. Bibliography: p. 162-163. ISBN: 0871920573 9780871920577 LCCN: 73089254 Subjects--Topical Terms: Artists' materials.Art--Technique. LC Class. No.: N7433 / .T55 Dewey Class. No.: 702/.8