Cita APA (7th ed.)

Bird, A. R., & McCoy, J. L. (1967). White Americans in rural poverty. U.S. Dept. of Agriculture. Economic Research Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off..

Cita Chicago (17th ed.)

Bird, Alan R., i John L. McCoy. White Americans in Rural Poverty. Washington]: U.S. Dept. of Agriculture. Economic Research Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1967.

Cita MLA (8th ed.)

Bird, Alan R., i John L. McCoy. White Americans in Rural Poverty. U.S. Dept. of Agriculture. Economic Research Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1967.