TY  - BOOK
AU  - Knudsen,Jens W.
TI  - Collecting and preserving plants and animals / 
U1  - 579 KNU 
PY  - 1972///.
CY  - New York : 
PB  - Harper and Row, Publishers, 
KW  - Biological specimens--Collection and preservation
KW  - Biology
ER  -