@book{112930,
	author = {Carlson, W. Bernard and Teaching Company},
	title = {Understanding the inventions that changed the world :},
	publisher = {The Teaching Company,},
	year = {2013.},
	series = {The Great courses},
	address = {Chantilly, Virginia :},
	note = {Course no. 1110
Transcript book for Great Courses video program.}
}