Gregory T. Barretto.
Chicago Style (17th ed.) CitationGregory T. Barretto.
MLA引文Gregory T. Barretto.
警告：這些引文格式不一定是100％准確.
APA引文
Gregory T. Barretto.
Chicago Style (17th ed.) CitationGregory T. Barretto.
MLA引文Gregory T. Barretto.