TY  - BOOK
AU  - Johnson,Donovan A.
AU  - Glenn,William H.
TI  - Exploring mathematics on your own : /b the world of measurement / 
U1  - 510 JOH 
PY  - 1972///, c1960]
CY  - London : 
PB  - John Murray, 
KW  - Mathematics
KW  - Mensuration
ER  -