APA (7th ed.) Citation

National Duroc Record Association & National Duroc-Jersey Record Association. (1921). Duroc-Jersey swine record. The National Duroc-Jersey Record Association.

Chicago Style (17th ed.) Citation

National Duroc Record Association and National Duroc-Jersey Record Association. Duroc-Jersey Swine Record. Peoria, Ill.: The National Duroc-Jersey Record Association, 1921.

MLA (9th ed.) Citation

National Duroc Record Association and National Duroc-Jersey Record Association. Duroc-Jersey Swine Record. The National Duroc-Jersey Record Association, 1921.

Warning: These citations may not always be 100% accurate.