Bennett, L. (1990). The company towns of the Rockhill Iron and Coal Company: Robertsdale and Woodvale, Pennsylvania. Historic American Buildings Survey/Historic American Engineering Record, National Park Service.
Cita Chicago (17th ed.)Bennett, Lola. The Company Towns of the Rockhill Iron and Coal Company: Robertsdale and Woodvale, Pennsylvania. Washington, D.C.: Historic American Buildings Survey/Historic American Engineering Record, National Park Service, 1990.
Cita MLA (8th ed.)Bennett, Lola. The Company Towns of the Rockhill Iron and Coal Company: Robertsdale and Woodvale, Pennsylvania. Historic American Buildings Survey/Historic American Engineering Record, National Park Service, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.