(1968). Fresh air. [s.n.].
Chicago Style (17th ed.) CitationFresh Air. Freeport, Ill.: [s.n.], 1968.
MLA引文Fresh Air. [s.n.], 1968.
警告：这些引文格式不一定是100％准确.
APA引文
(1968). Fresh air. [s.n.].
Chicago Style (17th ed.) CitationFresh Air. Freeport, Ill.: [s.n.], 1968.
MLA引文Fresh Air. [s.n.], 1968.