515 BAR - I BARTLE, ROBERT G . INTRODUCTION TO REAL ANALYSIS / / R . G . BARTLE & D . R . SHERTBERT. - 3RD ED. - NEW YORK: : JOHN WILEY,, c2002. 388 P.. : PAPER BACK 32651-55 - 4TH ED / 2015 / xiii , 402 P / 470/-.; 35155-56 - 4TH ED/ 2021/ xv, 361 P. 9788126511099 978-81-265-5181-1 978-93-5424-461-2 : 439/- * MATHEMATICAL ANALYSIS. REAL ANALYSIS. FUNCTIONS OF REAL VARIABLES. * SHERBERT, DONALD R . * Title