Collings, G. H. (2002). Commercial fertilizers: Their sources and use (4th ed.). Biotech Books.
芝加哥风格引文Collings, Gilbeart H. Commercial Fertilizers: Their Sources and Use. 4th ed. Delhi: Biotech Books, 2002.
MLA引文Collings, Gilbeart H. Commercial Fertilizers: Their Sources and Use. 4th ed. Biotech Books, 2002.
警告：这些引文格式不一定是100％准确.