Lewis, G. M. (1930). An analysis of shipments of Texas sheep and goats. University of Texas.
Lua i Stíl Chicago (17ú heag.)Lewis, George McKoy. An Analysis of Shipments of Texas Sheep and Goats. Austin, Tex.: University of Texas, 1930.
Lua MLA (8ú heag.)Lewis, George McKoy. An Analysis of Shipments of Texas Sheep and Goats. University of Texas, 1930.
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