Perry, J., & Great Britain. Board of Education. (1907). Practical mathematics.: Summary of six lectures delivered to working men. Printed for H.M. Stationery off. by Wyman and sons, limited.
MLA CitationPerry, John, and Great Britain. Board of Education. Practical Mathematics.: Summary of Six Lectures Delivered to Working Men. Printed for H.M. Stationery off. by Wyman and sons, limited, 1907.
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