APA引文

HUBBARD,Glenn. (2008). Economics (2nd.). Prentiice HJall.

芝加哥风格引文

HUBBARD,Glenn. Economics. 2nd. Uppersadle River: Prentiice HJall, 2008.

MLA引文

HUBBARD,Glenn. Economics. 2nd. Prentiice HJall, 2008.

警告：这些引文格式不一定是100％准确.