APA

(2011). British pharmacopeia (veterinary) 2011. London: The stationery office.

Chicago

2011. British pharmacopeia (veterinary) 2011. London: The stationery office.

Harvard

(2011). British pharmacopeia (veterinary) 2011. London: The stationery office.

MLA

British pharmacopeia (veterinary) 2011. London: The stationery office. 2011.