Leland, Ora Miner, 1876- Practical least squares. Ist edition. — New York. McGraw-Hill Book Co., Inc. 1921. Charts. Diagrams. Tables. 23cm. Bibliography, pp. 202, 203.
 
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M3386 — Least squares, Method of.
This card was printed at the Boston
¥**H 5125.62
xiv, 237 pp.
Pubtic Library, January 27, 1922.