1. McDonald L. (1983). Retirement: A socioeconomic analysis. Unpublished doctoral dissertation, Department of Sociology, The University of Calgary.
2. The Gap between Male and Female Income in Canada
3. Statistics Canada. (1980). The declining labour force participation rate of men age 55 and over: An examination of possible causes. Labour Force Research Paper No. 24.
4. Why men stop working at or before age 65: Findings from the survey of new beneficiaries;Reno;Social Security Bulletin,1971
5. Determinants of a Positive Attitude Toward Retirement