APA-Zitierstil (7. Ausg.)

Polak, P. (2009). Out of poverty: What works when traditional approaches fail. Harper - Collins.

Chicago-Zitierstil (17. Ausg.)

Polak, Paul. Out of Poverty: What Works When Traditional Approaches Fail. Harper - Collins, 2009.

MLA-Zitierstil (9. Ausg.)

Polak, Paul. Out of Poverty: What Works When Traditional Approaches Fail. Harper - Collins, 2009.