Helms, Michael E Perspective drawing : a step-by-step handbook / Michael E. Helms - Englewood Cliffs, New Jersey : Prentice Hall, 1990. - x, [421] pages ; ill. ; 28 cm. Includes index. ISBN: 0136592937 Subjects--Topical Terms: Perspective.Drawing--Technique. LC Class. No.: NC 750 H44 1990 REF