APA Edition Citation

Lewis, D., & Swan, H. (1976). Feed energy sources for livestock. Butterworths.

Chicago Edition Citation

Lewis, Dyfed, and Henry Swan. Feed Energy Sources for Livestock. London: Butterworths, 1976.

MLA Edition Citation

Lewis, Dyfed, and Henry Swan. Feed Energy Sources for Livestock. Butterworths, 1976.

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