| 000 | 00547nam a22001817a 4500 | ||
|---|---|---|---|
| 008 | 230213b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_aD 001.8 _bJ0 |
||
| 100 | 1 | 0 |
_aFreedman, Paul _9241 |
| 245 | _aPrinciples of scientific research | ||
| 260 |
_aWashington, D. C.: _bPublic Affairs Press, _c1950 |
||
| 300 | _axi, 222p. | ||
| 650 | _aResearch and philosophy | ||
| 653 | _aEconomy of effort | ||
| 653 | _aMental approach | ||
| 653 | _aPlanning of research | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c724 _d724 |
||