ayres, frank .
differential equations: including over 1900 fully solved problems/ frank.. ayres - 1 ed. - usa : mcgraw-hill book company 1952. - ", 295p.; 27 cm." - schaum's outline series .
07 084396 1
515. 35 ayr
differential equations: including over 1900 fully solved problems/ frank.. ayres - 1 ed. - usa : mcgraw-hill book company 1952. - ", 295p.; 27 cm." - schaum's outline series .
07 084396 1
515. 35 ayr