APA引文

Douglas, P. H. (1933). Collapse or cycle? American library association.

Chicago Style (17th ed.) Citation

Douglas, Paul Howard. Collapse or Cycle? Chicago: American library association, 1933.

MLA引文

Douglas, Paul Howard. Collapse or Cycle? American library association, 1933.

警告：這些引文格式不一定是100％准確.