TY - BOOK TI - Handy decimal reckoner: main price tables, profit and discount, interest, simple and compound, salary and wages, conversion AV - QC 94 H36.1960 PY - 1960/// CY - London PB - Collins KW - Decimal system KW - Conversion tables KW - Sistema decimal KW - Tablas de conversión N1 - Título de la cubierta: For decimal calculations throughout the world ER -