APA引文

ENGER ELDON D. (2013). ENVIRONMENTAL SCIENCE (13TH ED.). MC GRAW HILL.

芝加哥风格引文

ENGER ELDON D. ENVIRONMENTAL SCIENCE. 13TH ED. NEW YORK: MC GRAW HILL, 2013.

MLA引文

ENGER ELDON D. ENVIRONMENTAL SCIENCE. 13TH ED. MC GRAW HILL, 2013.

警告：这些引文格式不一定是100％准确.