APA aipamena

Williamson, J. B. (1975). Strategies against poverty in America. Schenkman Pub.

Chicago Style aipamena

Williamson, John B. Strategies Against Poverty in America. Cambridge, MA: Schenkman Pub, 1975.

MLA aipamena

Williamson, John B. Strategies Against Poverty in America. Schenkman Pub, 1975.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.