Cassidy, D. (1993). It`s when you sell that counts. Vision Books.
芝加哥风格引文Cassidy, Donald. It`s When You Sell That Counts. New Delhi: Vision Books, 1993.
MLA引文Cassidy, Donald. It`s When You Sell That Counts. Vision Books, 1993.
警告：这些引文格式不一定是100％准确.
APA引文