Basic Mathematics
Kerr, Donald R
Basic Mathematics arithmetic with an introductin to algebra - 2nd. ed. - New York McGraw-Hill 1980 - xv, 544p : ill.
QA 152.2 Ker
Basic Mathematics arithmetic with an introductin to algebra - 2nd. ed. - New York McGraw-Hill 1980 - xv, 544p : ill.
QA 152.2 Ker