APA
(1973). British pharmacopoeia 1973. Her Majestry's Stationery Office, London: .
Chicago
1973. British pharmacopoeia 1973. Her Majestry's Stationery Office, London: .
Harvard
(1973). British pharmacopoeia 1973. Her Majestry's Stationery Office, London: .
MLA
British pharmacopoeia 1973. Her Majestry's Stationery Office, London: . 1973.