Lewis, J. Parry 1927- An introduction to mathematics for students of economics. [[Book] /] J. Parry Lewis. - 2nd ed . - London, New York, : Macmillan, 1959. - 394 p. : illus. ; 23 cm. Bibliogr. LCCN: 59003490 Subjects--Topical Terms: Business mathematics. LC Class. No.: HF5691 / .L48 Dewey Class. No.: 511.8 National Library of Medicine Call No.: / L I