APA aipamena

Shears, W. S. (1938). Virtue's treasury of knowledge.

Chicago Style aipamena

Shears, W. S. Virtue's Treasury of Knowledge. 1938.

MLA aipamena

Shears, W. S. Virtue's Treasury of Knowledge. 1938.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.