APA
(1978). British pharmacopoeia 1973. Her Majesty's Stationery Office, London: .
Chicago
1978. British pharmacopoeia 1973. Her Majesty's Stationery Office, London: .
Harvard
(1978). British pharmacopoeia 1973. Her Majesty's Stationery Office, London: .
MLA
British pharmacopoeia 1973. Her Majesty's Stationery Office, London: . 1978.