Tully, John (2009). «A Victorian Ecological Disaster: Imperialism, the Telegraph, and Gutta-Percha». Journal of World History. 20 (4): 559–579. doi:10.1353/jwh.0.0088.muse.jhu.edu
jhu.edu
muse.jhu.edu
Tully, John (2009). «A Victorian Ecological Disaster: Imperialism, the Telegraph, and Gutta-Percha». Journal of World History. 20 (4): 559–579. doi:10.1353/jwh.0.0088.muse.jhu.edu