NPK (Working group). (1983). Handbook on environmental aspects of fertilizer use. M. Nijhoff/W. Junk for the CEA, ISMA, IPI.
Chicago Style (17th ed.) CitationNPK (Working group). Handbook on Environmental Aspects of Fertilizer Use. The Hague Boston: M. Nijhoff/W. Junk for the CEA, ISMA, IPI, 1983.
MLA (9th ed.) CitationNPK (Working group). Handbook on Environmental Aspects of Fertilizer Use. M. Nijhoff/W. Junk for the CEA, ISMA, IPI, 1983.
Warning: These citations may not always be 100% accurate.