APA
(1993). British pharmacopoeia (veterinary) 1993. HMSO, London: .
Chicago
1993. British pharmacopoeia (veterinary) 1993. HMSO, London: .
Harvard
(1993). British pharmacopoeia (veterinary) 1993. HMSO, London: .
MLA
British pharmacopoeia (veterinary) 1993. HMSO, London: . 1993.