Citazione APA

Lewis, G. M. (1930). An analysis of shipments of Texas sheep and goats. University of Texas.

Stile di citazione Chicago

Lewis, George McKoy. An Analysis of Shipments of Texas Sheep and Goats. Austin, Tex.: University of Texas, 1930.

Citazione MLA

Lewis, George McKoy. An Analysis of Shipments of Texas Sheep and Goats. University of Texas, 1930.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.