APA (7th ed.) Citation

Clausen, H., & Gerwig, C. (1958). Pig breeding, recording, and progeny testing in European countries. Food and Agriculture Organization of the United Nations.

Chicago Style (17th ed.) Citation

Clausen, Hjalmar, and Claude Gerwig. Pig Breeding, Recording, and Progeny Testing in European Countries. Rome: Food and Agriculture Organization of the United Nations, 1958.

MLA (9th ed.) Citation

Clausen, Hjalmar, and Claude Gerwig. Pig Breeding, Recording, and Progeny Testing in European Countries. Food and Agriculture Organization of the United Nations, 1958.