APA aipamena

Crowell-Collier. Editores. Collier's Encyclopedia. Vol XII.

Chicago Style aipamena

Crowell-Collier. Editores. Collier's Encyclopedia. Vol XII. [s.l.] : Crowell-Collier.

MLA aipamena

Crowell-Collier. Editores. Collier's Encyclopedia. Vol XII.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.