| 000 | 00418 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aMartignoni, M.E., Iwai, P.J. | |
| 245 | 1 | _aPeroral bioassay of technical grade preparations of the douglas fir tussock moth nucleopolyhedrosis virus | |
| 260 |
_aOregon _c1977 |
||
| 300 | _a1-12 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aUnited States Department of Agriculture, Forest Service Research Paper PNW-222 | ||
| 901 | _aS30733 | ||
| 999 |
_c105385 _d105385 |
||