Gill, Robert W. The Thames and Hudson manual of rendering with pen and ink / by Robert W. Gill. - London : Thames and Hudson, c1973. - 368 p. 25 cm. - The Thames and Hudson manuals . Bibliography: p. 364-365. ISBN: 050067003X 0500680035 (pbk.) LCCN: 73160912 Nat. Bib. No.: B73-07768 Subjects--Topical Terms: Pen drawing.Perspective.Architectural rendering. LC Class. No.: NC905 / .G54 1973 Dewey Class. No.: 720.28 / GIL