APA引文

Landis, P. H. (1948). Population problems: A cultural interpretation. American Book Company.

Chicago Style (17th ed.) Citation

Landis, Paul Henry. Population Problems: A Cultural Interpretation. New York: American Book Company, 1948.

MLA引文

Landis, Paul Henry. Population Problems: A Cultural Interpretation. American Book Company, 1948.

警告：這些引文格式不一定是100％准確.