TY  - BOOK
AU  - Harris, Errol E..
TI  - Hypothesis and  perception(the roots of scientific method) / 
SN  - 0 04 121013 1
U1  - R211 
PY  - 1929///
CY  - London : 
PB  - george Allen & Unwin Ltd , 
KW  - Philosophy<Empiricist Reformers>
ER  -