I 49.15/3:241
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Residues of DDT, dieldrin, and heptachlor in earthworms during two years following application / |
1 |
I 49.15/3:242
|
Changes in vegetation structure in seeded nesting cover in the prairie pothole region / |
1 |
I 49.15/3:243
|
Bibliography of references to avian botulism : update / |
1 |
I 49.15/3:245
|
Organochlorine residues in eggs of Alaskan seabirds / |
1 |
I 49.15/3:248
|
Habitat use and productivity of canvasbacks in southwestern Manitoba, 1961-72 / |
1 |
I 49.15/3:249
|
Migration, harvest, and population dynamics of mourning doves banded in the central management unit, 1967-77 / |
1 |
I 49.15/3:250
|
Population dynamics of mourning doves banded in Missouri / |
1 |
I 49.15/3:251
|
Duck stamps sold within states and counties during sales years 1971-72 through 1980-81 / |
1 |
I 49.15/3:252
|
Nonconsumptive outdoor recreation : an annotated bibliography of human-wildlife interactions / |
1 |
I 49.15/3:253
|
Ecology of Aleutian Canada geese at Buldir Island, Alaska / |
1 |
I 49.15/3:254
|
Distribution of waterfowl species harvested in states and counties during 1971-80 hunting seasons / |
1 |
I 49.16:6/2
|
The House Rat, Feb. 1942 Revisions. |
2 |
I49.16..6_2
|
The House Rat, Feb. 1942 Revisions. |
2 |
I 49.16:6/2-2
|
The House Rat, 1943 Reprint. |
1 |
I49.16..6_2-2
|
The House Rat, 1943 Reprint. |
1 |
I 49.16:7
|
An Improved Method for Revealing the Surface Structure of Fur Fibers. |
2 |
I49.16..7
|
An Improved Method for Revealing the Surface Structure of Fur Fibers. |
2 |
I 49.16:8
|
Silver Fox Pup Values in Relation to Date of Birth, Age of Vixens and Other Factors. |
2 |
I49.16..8
|
Silver Fox Pup Values in Relation to Date of Birth, Age of Vixens and Other Factors. |
2 |
I 49.16:9
|
Regulations Relating to Migratory Birds and Certain Game Mammals : 1940. |
2 |