Von Wartburg, Ursula. The workshop book of knitting. - [1st ed.] - New York, Atheneum, 1973. - 148 p. illus. 25 cm. ISBN: 0689206968 LCCN: 71157313 Subjects--Topical Terms: Knitting. LC Class. No.: TT820 / .V63 1973 Dewey Class. No.: 746.43 / WAR