Hadfield, C., & Hadfield, J. Writing games.
Chicago Style (17th ed.) CitationHadfield, Charles, and Jill Hadfield. Writing Games.
MLA引文Hadfield, Charles, and Jill Hadfield. Writing Games.
警告：這些引文格式不一定是100％准確.
APA引文
Hadfield, C., & Hadfield, J. Writing games.
Chicago Style (17th ed.) CitationHadfield, Charles, and Jill Hadfield. Writing Games.
MLA引文Hadfield, Charles, and Jill Hadfield. Writing Games.