text Marcel Dekker 1991 N xvii, 532 hlm. 25 cm Persamaan diferensial 515.35 515.35 Dif 0824784049 INLIS000000000002721 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)