@inbook{NBERc1063,
 Crossref = "NBERmurr68-1",
 title = "I The Principal Questions",
 author = "Roger F. Murray",
 BookTitle = "Economic Aspects of Pensions: A Summary Report",
 Publisher = "UMI",
 pages = "1-12",
 year = "1968",
 URL = "http://www.nber.org/chapters/c1063",
}
@book{NBERmurr68-1,
 title = "Economic Aspects of Pensions: A Summary Report",
 author = "Roger F. Murray",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "UMI",
 year = "1968",
 URL = "http://www.nber.org/books/murr68-1",
}