APA引文

(1989). Information Please Almanac Atlas & Yearbook 1989. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Information Please Almanac Atlas & Yearbook 1989. Houghton Mifflin, 1989.

MLA引文

Information Please Almanac Atlas & Yearbook 1989. Houghton Mifflin, 1989.

警告：这些引文格式不一定是100％准确.