TY  - BOOK
AU  - Freedman,Paul
TI  - The principles of scientific research
U1  - 001.42 
PY  - 1949///
CY  - London
PB  - Macdonald and Co, 
KW  - Generalities
KW  - SCIENTIFIC METHOD
KW  - RESEARCH POLICY
KW  - DIFFUSION OF RESEARCH
KW  - EXPERIMENTS
KW  - SCIENTIFIC RESEARCHES
ER  -