00594cam a2200181 4500 1910 20181127164218.0 760727s1966 caua 001 0 eng 66028845 Berg, Paul W. Elementary partial differential equations / Paul W. Berg. San Francisco : Holden-Day, 1966. xv, 421 p. : ill. ; 24 cm. Holden-Day series in mathematics Differential equations, Partial. James L. McGregor. McGregor, James L., joint author. 1471 1471 0 0 ddc 0 0 MAIN RTCLIB RTCLIB MAIN 932 0 515.35 BER 30003351 2018-11-27 00:00:00 2018-11-27 MAIN