Cita APA (7a ed.)

Karpinski, A. (1964). 20 twenty years of Poland's economic development, 1944-1964. Polonia Pub. House.

Cita Chicago Style (17a ed.)

Karpinski, Andrzej. 20 Twenty Years of Poland's Economic Development, 1944-1964. Warsaw: Polonia Pub. House, 1964.

Cita MLA (9a ed.)

Karpinski, Andrzej. 20 Twenty Years of Poland's Economic Development, 1944-1964. Polonia Pub. House, 1964.