APA

Armstrong T. A., Ivers D. J., Wagner J. R., Anderson D. B., Weldon W. C. & Berg E. P. (20060727). The effect of dietary ractopamine concentration and duration of feeding on growth performance, carcass characteristics, and meat quality of finishing pigs. : Journal of animal science.

Chicago

Armstrong T A, Ivers D J, Wagner J R, Anderson D B, Weldon W C and Berg E P. 20060727. The effect of dietary ractopamine concentration and duration of feeding on growth performance, carcass characteristics, and meat quality of finishing pigs. : Journal of animal science.

Harvard

Armstrong T. A., Ivers D. J., Wagner J. R., Anderson D. B., Weldon W. C. and Berg E. P. (20060727). The effect of dietary ractopamine concentration and duration of feeding on growth performance, carcass characteristics, and meat quality of finishing pigs. : Journal of animal science.

MLA

Armstrong T A, Ivers D J, Wagner J R, Anderson D B, Weldon W C and Berg E P. The effect of dietary ractopamine concentration and duration of feeding on growth performance, carcass characteristics, and meat quality of finishing pigs. : Journal of animal science. 20060727.