@book{154561,
	author = {Gamser, Matthew S. and Intermediate Technology Development Group.},
	title = {Tinker, tiller, technical change :},
	publisher = {Intermediate Technology Publications ,},
	year = {1990.},
	address = {London, UK :},
	note = {Results of field work originally presented at a seminar held at the London Business School in June 1989.}
}