@book{100330,
	author = {Medina Casas, Karina and Manzo González, Alejandro},
	title = {Propagación in vitro de la hierba de San Juan (Hypericum perforatum L.)},
	publisher = {El autor,},
	year = {2010.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/111989.pdf}
}