TY  - BOOK
AU  - Chisholm Roderick M ed
AU  -  Swartz Robert J ed
TI  - Empirical knowledge : Readings from contemporary sources edited Roderick M Chisholm and Robert J Swartz
U1  - R2z7, L32 
PY  - 1973///
CY  - Englewood
PB  - Cliffs Prentice Hall     
ER  -