APA引文

(1978). Writing for results: Principles and practice / Dugan Laird.

芝加哥风格引文

Writing for Results: Principles and Practice / Dugan Laird. 1978.

MLA引文

Writing for Results: Principles and Practice / Dugan Laird. 1978.

警告：这些引文格式不一定是100％准确.