APA (7th ed.) Citation

Petrie, M., & Sturm, P. (1991). Old age income maintenance: Basic problems and alternative responses. OECD.

Chicago Style (17th ed.) Citation

Petrie, Murray, and Peter Sturm. Old Age Income Maintenance: Basic Problems and Alternative Responses. [Paris]: OECD, 1991.

MLA (9th ed.) Citation

Petrie, Murray, and Peter Sturm. Old Age Income Maintenance: Basic Problems and Alternative Responses. OECD, 1991.