Progress in protozoology; proceedings. Edited by J. Ludvík, J. Lom [and] J. Vavra. Scientific editor: Otto Jírovec. International Congress on Protozoology. Ludvík, J., [from old catalog] ed. Jírovec, Otto, [from old catalog] ed. Protozoology Congresses. 593 LUP Includes bibliographical references and index. New York, Academic Press, 1963. 1963. 1963 Text 623 p, : eng