Bennett, J. R., & Utz, K. R. (2010). Iron & steel: A guide to Birmingham area industrial heritage sites. University of Alabama Press.
Cita Chicago (17th ed.)Bennett, James R., i Karen R. Utz. Iron & Steel: A Guide to Birmingham Area Industrial Heritage Sites. Tuscaloosa: University of Alabama Press, 2010.
Cita MLA (9th ed.)Bennett, James R., i Karen R. Utz. Iron & Steel: A Guide to Birmingham Area Industrial Heritage Sites. University of Alabama Press, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.