TY  - BOOK
AU  - Lankford, Francis Greenfield,
AU  - Ulrich, James F.;Clark, John R
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 2
PY  - 1961///;[1961]46
CY  - New York :;New York
PB  - Harcourt, Brace and World. Inc,;Harcourt, Brace, & World
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Mathematics
KW  - sears0
N1  - 5
ER  -