Maps.com (Firm) & ebrary, Inc. (1997). Independent states. Magellan Geographix.
芝加哥风格引文Maps.com (Firm) 与 Inc ebrary. Independent States. [S.l.]: Magellan Geographix, 1997.
MLA引文Maps.com (Firm) 与 Inc ebrary. Independent States. Magellan Geographix, 1997.
警告：这些引文格式不一定是100％准确.