ADAMS GERALD R. (1985). UNDERSTANDING RESEARCH METHODS. LONGMAN GROUP.
芝加哥风格引文ADAMS GERALD R. UNDERSTANDING RESEARCH METHODS. NEW YORK LONDON: LONGMAN GROUP, 1985.
MLA引文ADAMS GERALD R. UNDERSTANDING RESEARCH METHODS. LONGMAN GROUP, 1985.
警告：这些引文格式不一定是100％准确.