(2008). How do we spend our time?: Evidence from the American time use survey. W.E. Upjohn Institute for Employment Research.
Chicago-Zitierstil (17. Ausg.)How Do We Spend Our Time?: Evidence from the American Time Use Survey. Kalamazoo, Mich: W.E. Upjohn Institute for Employment Research, 2008.
MLA-Zitierstil (9. Ausg.)How Do We Spend Our Time?: Evidence from the American Time Use Survey. W.E. Upjohn Institute for Employment Research, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.