APA引文

LEDGARD HANRY. (1982). ELEMENTRY PASCAL. SCIENCE RESEARCH.

芝加哥风格引文

LEDGARD HANRY. ELEMENTRY PASCAL. I B M: SCIENCE RESEARCH, 1982.

MLA引文

LEDGARD HANRY. ELEMENTRY PASCAL. SCIENCE RESEARCH, 1982.

警告：这些引文格式不一定是100％准确.