Παραπομπή σε μορφή APA (7η εκδ.)

Summers, L. H. (1992). Investing in all the people. Office of the Vice President, Development Economics, World Bank.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Summers, Lawrence H. Investing in All the People. Washington, D.C: Office of the Vice President, Development Economics, World Bank, 1992.

Παραπομπή σε μορφή MLA (9th εκδ.)

Summers, Lawrence H. Investing in All the People. Office of the Vice President, Development Economics, World Bank, 1992.