Jeffrey, H. C. Atlas of medical helminthology and protozoology / by H. C. Jeffrey and R. M. Leach. - 2nd ed. - Edinburgh : Churchill Livingstone, 1975. - 121 p. : chiefly ill. (some col.) ; 33 cm. Open Access. ISBN: 0443012229 LCCN: 7481190 Subjects--Topical Terms: Medical helminthology.Medical protozoology.