Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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