Frans, F. (1945). A layman looks at vocations. s.n..
Chicago Style (17th ed.) CitationFrans, Frederic. A Layman Looks at Vocations. [S.l.: s.n., 1945.
MLA引文Frans, Frederic. A Layman Looks at Vocations. s.n., 1945.
警告:这些引文格式不一定是100%准确.
Frans, F. (1945). A layman looks at vocations. s.n..
Chicago Style (17th ed.) CitationFrans, Frederic. A Layman Looks at Vocations. [S.l.: s.n., 1945.
MLA引文Frans, Frederic. A Layman Looks at Vocations. s.n., 1945.