Styl cytowania APA

Hoekman, B. M., Braga, C. A. P., & World Bank International Trade Division. (1997). Protection and trade in services: A survey. World Bank, International Economics Dept., International Trade Division.

Styl cytowania Chicago

Hoekman, Bernard M., Carlos Alberto Primo Braga, i World Bank International Trade Division. Protection and Trade in Services: A Survey. Washington, DC: World Bank, International Economics Dept., International Trade Division, 1997.

Styl cytowania MLA

Hoekman, Bernard M., et al. Protection and Trade in Services: A Survey. World Bank, International Economics Dept., International Trade Division, 1997.