TY - BOOK AU - Derrick,William R. AU - Grossman,Stanley I. TI - Elementary Differential Equations T2 - 4th edition SN - 0673985547 (paperback) PY - 1997/// CY - [S.l.] PB - Pearson KW - Differential Equations UR - http://10.10.170.122:8080/browse/book/26446 ER -