@book{11540,
	author = {Syers, John K. and Johnston, A. E. and Food and Agriculture Organization of the United Nations.},
	title = {Efficiency of soil and fertilizer phosphorus use :},
	publisher = {Food and Agriculture Organization of the United Nations,},
	year = {2008.},
	address = {Rome :},
	note = {D. Curtin is a New Zealand author.},
	url = {http://www.loc.gov/catdir/toc/fy1001/2008437458.html}
}