APA (7th ed.) Citation

Kowalczyk, C. (1990). Welfare and customs unions. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Kowalczyk, Carsten. Welfare and Customs Unions. Cambridge, Mass: National Bureau of Economic Research, 1990.

MLA (9th ed.) Citation

Kowalczyk, Carsten. Welfare and Customs Unions. National Bureau of Economic Research, 1990.

Warning: These citations may not always be 100% accurate.