Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
612.4/6 Silverstein, Alvin. The excretory system / Alvin, Virginia, and Robert Silverstein. - 1st ed.. - New York : Twenty-First Century Books, 1994. 94 p. : ill. (some col.) ; 27 cm. Includes index. 080502834X (acid-free paper) 9780805028348 (acid-free paper) * Urinary organs - Juvenile literature. Excretory system. * Silverstein, Virginia B.Silverstein, Robert A. * Title