@article{Sapsford1985,
	title = {The Prebisch-Singer terms of trade hypothesis : Some new evidence},
	author = {David Sapsford},
	journal = {Economics Letters},
	number = {2-3},
	pages = {229--232},
	url = {http://www.sciencedirect.com/science/article/B6V84-45BC72T-26/2/ef181ef74927e1d21901175b18db2dea},
	volume = {18},
	year = {1985},
	biburl = {http://www.bibsonomy.org/bibtex/2422fd2490c33539eafc2a5ff210032e4/smicha},
	description = {Economics Letters},
	keywords = {imported }
}