APA (7e ed.) Bronvermelding
ebrary, Inc, & Ditch, J. (1999). Introduction to social security: Policies, benefits, and poverty. Routledge.
Chicago (17e ed.) Bronvermelding
ebrary, Inc, en John Ditch. Introduction to Social Security: Policies, Benefits, and Poverty. London ; New York: Routledge, 1999.
MLA (9e ed.) Bronvermelding
ebrary, Inc, en John Ditch. Introduction to Social Security: Policies, Benefits, and Poverty. Routledge, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.