@book{168172,
	author = {Felix Reyes, Noé and Peña Varela, Victor Hugo},
	title = {Potencial de nodulación del Trifolium wormskioldii var. ortegae (Greene) Barneby  /},
	publisher = {El autor,},
	year = {2004},
	address = {Chapingo, Méx.  :}
}