多项选择题
Which of the following need(s) a citation?
A、Common knowledge.
B、One or two exact words from an artical.
C、Only one sentence from a book.
D、A specific experimental method.
E、An idea from a book explained in your own words.
F、Data collected by yourself.
G、A conclusion you draw based on facts provided by other authors.
H、A diagram from another article you have published.