TY  - GEN
AU  - Williams,Ralph C.
TI  - Mathematics for communication: number relations 
SN  - 087620552X
U1  - 510,WIL 
PY  - 1971///, c1972]
CY  - Pacific Palisades, Calif.
PB  - Goodyear Pub. Co.
KW  - Arithmetic
N1  - Geometry of illustrations and drawings (Page-7), Language of sets, numbers and operations (Page-37), Representations of numbers (Page-57), Computation processes of addition and substraction (Page-77), Computation processes of multiplication and division (Page-101), Relations and functions (Page-127), Multiple and advisor relations (Page-145), Arithmetic and algebraic expressions (Page-163), Geometry of plane and solid figures (Page-181), Fraction and fractional numerals (Page-203), Ratio comparison and percent (Page-249), Integers (Page-269), Ratioinal and real numbers (Page-281)
ER  -