APA-viite (7. p.)
Ziegler, C. (1928). School attendance as a factor in school progress. Columbia Univ.
Chicago-viite (17. p.)
Ziegler, Carl. School Attendance as a Factor in School Progress. New York: Columbia Univ, 1928.
MLA-viite (9. p.)
Ziegler, Carl. School Attendance as a Factor in School Progress. Columbia Univ, 1928.
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