Hartill, Brenda Collagraphs and Mixed-Media Printmaking / Brenda Hartill, Richard Clarke. - London : Herbert Press, 2005 - 128 p.: ill.; 25 cm. ISBN: 9781912217243 Subjects--Topical Terms: Prints--TechniqueCollage--TechniqueCollagraph printing--Technique Dewey Class. No.: 760 / HAC 2005