APA aipamena

National Council for the Social Studies. (1951). The teaching of contemporary affairs. s.n.

Chicago Style aipamena

National Council for the Social Studies. The Teaching of Contemporary Affairs. Washington, D.C: s.n, 1951.

MLA aipamena

National Council for the Social Studies. The Teaching of Contemporary Affairs. s.n, 1951.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.