APA引文

Maps.com (Firm) & ebrary, Inc. (1999). Sierra Leone. Maps.com.

Chicago Style (17th ed.) Citation

Maps.com (Firm) and Inc ebrary. Sierra Leone. [S.l.]: Maps.com, 1999.

MLA引文

Maps.com (Firm) and Inc ebrary. Sierra Leone. Maps.com, 1999.

警告：這些引文格式不一定是100％准確.