Shepherd, B., & Wilson, J. S. (2006). Road infrastructure in Europe and Central Asia: Does network quality affect trade? World Bank.
Chicago (17e ed.) BronvermeldingShepherd, Ben, en John S. Wilson. Road Infrastructure in Europe and Central Asia: Does Network Quality Affect Trade? Washington, D.C: World Bank, 2006.
MLA (9e ed.) BronvermeldingShepherd, Ben, en John S. Wilson. Road Infrastructure in Europe and Central Asia: Does Network Quality Affect Trade? World Bank, 2006.
Let op: Deze citaties zijn niet altijd 100% accuraat.