TY - BOOK AU - Asimov,Isaac AU - Kors,Erika W. TI - How did we find out about Neptune? T2 - How did we find out ...? series SN - 0802769810 (trade) : AV - QB691 .A84 1990 U1 - 523.4/81 20 PY - 1990/// CY - New York PB - Walker KW - Neptune (Planet) KW - Juvenile literature KW - sears N1 - Includes index; School Library Journal; Voice of Youth Advocates (V.O.Y.A.); 7.3; Follett Library Book Co; 7.3; Follett Library Resources; 5-8; 5-8; Follett Library Resources N2 - An account of astronomers' observations over the years leading to the discovery of Neptune's existence ER -