APA aipamena

Lippmann, W. (1942). Preface to morals.

Chicago Style aipamena

Lippmann, Walter. Preface to Morals. 1942.

MLA aipamena

Lippmann, Walter. Preface to Morals. 1942.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.