Answers to the problems in Mathematics for today, book 1, by Harl R. Douglass & Lucien B. Kinney.
DOUGLASS, HARL R. Answers to the problems in Mathematics for today, book 1, by Harl R. Douglass & Lucien B. Kinney. © 8Sep41; AA375567. Holt, Rinehart & Winston, Inc. (PWH); 24Jul69; R466617.
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