Appendix A: The Development and Role of the National Bureau of Economic Research's Business Cycle Chronologies

Geoffrey H. Moore and Victor Zarnowitz, The American Business Cycle: Continuity and Change (University of Chicago Press, 1986), https://www.nber.org/books-and-chapters/american-business-cycle-continuity-and-change/appendix-development-and-role-national-bureau-economic-researchs-business-cycle-chronologies.