| 000 | 00492 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aHenson, Walter R., Oneil, Louis C., Mergen, Francois | |
| 245 | 1 | _aNatural variation in susceptibility of pinus to neodiprion sawflies as a basis for the development of a breeding scheme for resistant trees | |
| 260 |
_aNew Haven _c1970 |
||
| 300 | _a1-71 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aBreeding, Resistant, Development, Pinus Yale University School of Forestry. Bulletin No. 78 | ||
| 901 | _aS19280 | ||
| 999 |
_c102989 _d102989 |
||