Cita APA (7a ed.)
British Sulphur Corporation, ltd. Phosphorus and potassium. British Sulphur Corporation, ltd.
Cita Chicago Style (17a ed.)
British Sulphur Corporation, ltd. Phosphorus and Potassium. London: British Sulphur Corporation, ltd.
Cita MLA (9a ed.)
British Sulphur Corporation, ltd. Phosphorus and Potassium. British Sulphur Corporation, ltd.
Precaución: Estas citas no son 100% exactas.