TY  - BOOK
AU  - Lankford, Francis G.
AU  - Ulrich, James F.
AU  - Clark, John R.
TI  - Essential mathematics
AV  - QA141.15 .L36 1961
PY  - 1961///
CY  - New York
PB  - Harcourt, Brace and World, Inc.
KW  - Mathematics - essential
KW  - Mathematics
N1  - Includes index
ER  -