APA (7th ed.) Citation

Research, H. C. o. E., Ilmakunnas, P., & Ilmakunnas, S. (2006). Gradual retirement and lengthening of working life. Helsinki.

Chicago Style (17th ed.) Citation

Research, Helsinki Center of Economic, Pekka Ilmakunnas, and Seija Ilmakunnas. Gradual Retirement and Lengthening of Working Life. Helsinki, 2006.

MLA (8th ed.) Citation

Research, Helsinki Center of Economic, et al. Gradual Retirement and Lengthening of Working Life. Helsinki, 2006.