00378    a2200121   4500008004100000020001800041082002000059100002400079245005600103260004100159300003000200700002600230250218b        |||||||| |||| 00| 0 eng d  a9780000988355  a515.35bB918.FC  aBuchanan, J. Robert  aA first course in partial differential equationsb/  aNew Jersey:bWorld Scientific,c2023  axviii, 606p. Bibl. Index.  aShao, Zhoudeeauthor.