APA-viite (7. p.)

Chong, A., Hentschel, J., & Saavedra, J. (2004). Bundling services and household welfare in developing countries: The case of Peru. World Bank.

Chicago-viite (17. p.)

Chong, Alberto, Jesko Hentschel, ja Jaime Saavedra. Bundling Services and Household Welfare in Developing Countries: The Case of Peru. [Washington, D.C: World Bank, 2004.

MLA-viite (9. p.)

Chong, Alberto, et al. Bundling Services and Household Welfare in Developing Countries: The Case of Peru. World Bank, 2004.