TY - BOOK AU - Boyce,William E. AU - DiPrima,Richard C. TI - Elementary differential equations : L-1,P50 SN - 0471093319 U1 - 515.35 PY - 1935/// CY - New York PB - Wiley KW - Differential equations KW - MCE N1 - 0; 0; 0; 515_350000000000000_KEL ER -