APA引文

WILLINGHAM RON. (2005). INTEGRITY SERVICES. FREE PRESS.

芝加哥风格引文

WILLINGHAM RON. INTEGRITY SERVICES. NEW YORK: FREE PRESS, 2005.

MLA引文

WILLINGHAM RON. INTEGRITY SERVICES. FREE PRESS, 2005.

警告：这些引文格式不一定是100％准确.