Herzberger, Erwin Freehand drawing for architects and designers : watercolor, colored pencil, black and white techniques / Erwin Herzberger - New York : Whitney Library of Design, 1996 - 111 p. : ill. (some col.) ; 22 cm. Includes index ISBN: 0823019195 RM79.00 LCCN: 95-050296 Subjects--Topical Terms: Architectural drawing--Technique