TY - GEN digital ID - 132571720 TI - A century of work and leisure AU - Ramey, Valerie A. AU - Francis, Neville PY - 2006 PB - Cambridge, Mass. NBER DB - UniCat KW - Zonder onderwerpscode: economie UR - https://www.unicat.be/uniCat?func=search&query=sysid:132571720 AB - ER -