00411nam a22001577a 4500003000400000005001700004008004100021040000800062050002400070100001700094130001300111245007100124250001300195260003600208300000900244OSt20200721154147.0200721b        xxu||||| |||| 00| 0 eng d  cn/a  aQA303.3b.A948 1964  aAyres, Frank  acalculus  aSchaum's theory and problems of Differential and integral calculus  a2nd edn.  aUSAbMcGraw-Hill Book Co.c1964  a345p