APA引文

James Robertson. (1981). Any fool can be a pig farmer. Farming press suffolk.

Chicago Edition Citation

James Robertson. Any Fool Can Be a Pig Farmer. Farming press suffolk, 1981.

MLA引文

James Robertson. Any Fool Can Be a Pig Farmer. Farming press suffolk, 1981.

警告：這些引文格式不一定是100％准確.