Heelan, Judith S. Workbook to accompany Essentials of human parasitology / Judith S. Heelan. - Albany, N.Y. : Delmar-Thomson Learning, c2002. - v, 211 p. : ill. 28 cm. ISBN: 9780766812857;981243674X National Library of Medicine Call No.: QR 251 / .H44 2002 Suppl.