@book{33482,
	author = {Wolf, Paul R., and Ghilani, Charles D.},
	title = {Topografía /},
	publisher = {Alfaomega,},
	year = {2009.},
	address = {México:},
	edition = {11a ed.},
	note = {Versión original en inglés: Elementary surveying. An introduction to geomatics.}
}