Costello, D. F., & Kipple, G. (1960). Vegetation cattle responses to different intesities of grazing on short-grass range on central great plains. United States Department of Agriculture.
Lua i Stíl Chicago (17ú heag.)Costello, David F., agus G.E Kipple. Vegetation Cattle Responses to Different Intesities of Grazing on Short-grass Range on Central Great Plains. Washington, D.C.: United States Department of Agriculture, 1960.
Lua MLA (9ú heag.)Costello, David F., agus G.E Kipple. Vegetation Cattle Responses to Different Intesities of Grazing on Short-grass Range on Central Great Plains. United States Department of Agriculture, 1960.
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