Rozwadowski, Helen M. (2012). "Arthur C. Clarke and the Limitations of the Ocean as a Frontier". Environmental History. 17 (3). Forest History Society: 587. doi:10.1093/envhis/ems046. JSTOR23212360.
jstor.org
Rozwadowski, Helen M. (2012). "Arthur C. Clarke and the Limitations of the Ocean as a Frontier". Environmental History. 17 (3). Forest History Society: 587. doi:10.1093/envhis/ems046. JSTOR23212360.