Crawshaw, Alwyn Watercolor / Alwyn Crawshaw, June Crawshaw, Trevor Waugh - New York : HarperCollins, 2005 - 191 p. : ill. ; 21 cm. ISBN: 9780060828141 (pbk.) : RM69.90 0060828145 (pbk.) Subjects--Topical Terms: Watercolor painting--Techniique