APA引文

Playground Athletic League (Baltimore, Md.). Official handbook. American Sports Pub. Co.

Chicago Style (17th ed.) Citation

Playground Athletic League (Baltimore, Md.). Official Handbook. New York: American Sports Pub. Co.

MLA引文

Playground Athletic League (Baltimore, Md.). Official Handbook. American Sports Pub. Co.

警告：这些引文格式不一定是100％准确.