@book{71046,
	author = {Hollist, W. Ladd,},
	title = {World system structure :},
	publisher = {SAGE Publications,},
	year = {c1981.},
	series = {Sage focus editions ;},
	address = {Beverly Hills , Calif. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0654/81009224-d.html}
}