00636nam a2200181 a 450000500170000000800410001710000240005824500820008225000120016426000430017630000340021950000950025350000190034865000270036770000250039470000240041985200110044320190520021730.0090326s19uu    xx            00    eng d10aDerrick, William R.10aElementary differential equations /cWilliam R. Derrick, Stanley I. Grossman.  a4th ed.0 aReading, MA :bAddison-Wesley,cc1997.  a1 v. (various pagings) : ill.  aAbridged of: Elementary differential equations with boundary value problems. 4th ed. 1996.  aIncludes index  aDifferential equations1 aGrossman, Stanley I.1 aDerrick, William R.  7OLOPSC