Citation: Cole. John W. et Kezich. Giovanni, The Hidden Ecology. Conversating with John W. Cole in Trento, SM. Annali di San Michele San Michele , 9-10, 1996, pp. 11-21
Citation: Cole. John W. et Wolf. Eric R., Ecology and History: the work of Robert McC. Nettingra, SM. Annali di San Michele San Michele , 11, 1998, pp. 17-22