Crofton, H. D. (Harry Draper). Nematodes by H.D. Crofton. - London : Hutchinson University Library , 1966. - 160 p. : ill., tables, diagrs. ; 22 cm. - Hutchinson university library. Biological sciences . Bibliography: p. 153. LCCN: 66-075444 //r85 Subjects--Topical Terms: Nematoda.