Calvino, I. (1974). Invisible cities (1st Harvest/HBJ ed.). Harcourt Brace Jovanovich.
芝加哥风格引文Calvino, Italo. Invisible Cities. 1st Harvest/HBJ ed. New York: Harcourt Brace Jovanovich, 1974.
MLA引文Calvino, Italo. Invisible Cities. 1st Harvest/HBJ ed. Harcourt Brace Jovanovich, 1974.
警告：这些引文格式不一定是100％准确.