APA aipamena

Bolt, R. A. (1934). Child Hygiene: Child Welfare in Germany.

Chicago Style aipamena

Bolt, Richard Arthur. Child Hygiene: Child Welfare in Germany. 1934.

MLA aipamena

Bolt, Richard Arthur. Child Hygiene: Child Welfare in Germany. 1934.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.