
Czubala, W., Shepherd, B., & Wilson, J. S. (2007). Help Or Hindrance ?: The Impact of Harmonized Standards On African Exports. The World Bank.
Citação norma ChicagoCzubala, Witold, Benjamin Shepherd, and John S. Wilson. Help Or Hindrance ?: The Impact of Harmonized Standards On African Exports. Washington, D.C: The World Bank, 2007.
Citação norma MLACzubala, Witold, et al. Help Or Hindrance ?: The Impact of Harmonized Standards On African Exports. The World Bank, 2007.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.