The 'New Express' percentage and discount reckoner
Subtitle: showing (a) the value of 1/16% to 983/4%, 1d. to (5,000; (b) the net value of sums after deducting discount.
Series: The 'Express Series' -- vol. 2
Publisher: Gall and Inglis
Published: 1942
Place of publication: London
Language: eng