TY - BOOK AU - Brown D S TI - Freshwater snails of Africa and their medical importance SN - 0850661455 AV - QL430.4 U1 - 594/.3/096 PY - 1980/// CY - London PB - Taylor & Francis KW - Gastropoda KW - Africa KW - Snails as carriers of disease KW - Mollusks KW - Snails KW - Trematoda KW - Trematode Infections N1 - Includes bibliographical references and indexes ER -