APA aipamena

University, U. c. S. L. 1970s - photographs of classroom.

Chicago Style aipamena

University, Unknown creator; St. Louis. 1970s - Photographs of Classroom.

MLA aipamena

University, Unknown creator; St. Louis. 1970s - Photographs of Classroom.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.