An introduction to the study of protozoa, Doris L. Mackinnon and R. S. J. Hawes. Mackinnon, Doris L. Hawes, R. S. J. Protozoology. Protozoa. 593 MAI Includes bibliographical references and index. Oxford, Clarendon Press, 1961. 1961. 1961 Text xviii, 506 p, : eng