Basic mathematics with hand-held calculator /
Dubisch, Roy, 1917 -
Basic mathematics with hand-held calculator / Roy Dubisch and Ver non R. Hood - Menlo Park, Calif : Benjamin/Cummings, 1979. - xii, 493 p. ; 28 cm.
Arithmetic--1961 -
Q 513 DUB
Basic mathematics with hand-held calculator / Roy Dubisch and Ver non R. Hood - Menlo Park, Calif : Benjamin/Cummings, 1979. - xii, 493 p. ; 28 cm.
Arithmetic--1961 -
Q 513 DUB