Roberge, E. (1973). Timber country. Caxton Printers.
Cita Chicago Style (17a ed.)Roberge, Earl. Timber Country. Caldwell, Idaho: Caxton Printers, 1973.
Cita MLA (8a ed.)Roberge, Earl. Timber Country. Caxton Printers, 1973.
Precaución: Estas citas no son 100% exactas.