TY  - BOOK
AU  - Mallory,Virgil Sampson
TI  - Mathematics for everyday affairs : : a course in general mathematic s/ 
U1  - 501 MAL 
PY  - 1941///
CY  - Chicago, : 
PB  - B. H. Sanborn, 
KW  - Mathematics
KW  - Arithmetic
N1  -  "Answers to exercises in chapter XVI": p. 458-463
ER  -