Cita APA

Smith, W., Penny, R., & Taylor, D. (1990). A colour atlas of diseases and disorders of the pig. England: Wolfe Publising.

Citación estilo Chicago

Smith, W.J., R.H.C Penny, y D.J Taylor. A Colour Atlas of Diseases and Disorders of the Pig. England: Wolfe Publising, 1990.

Cita MLA

Smith, W.J., R.H.C Penny, y D.J Taylor. A Colour Atlas of Diseases and Disorders of the Pig. England: Wolfe Publising, 1990.