APA-referens (7:e uppl.)

Gill, R. T. (1967). Economic development: Past and present. Prentice-Hall.

Chicago-referens (17:e uppl.)

Gill, Richard T. Economic Development: Past and Present. Englewood Cliffs, NJ: Prentice-Hall, 1967.

MLA-referens (9:e uppl.)

Gill, Richard T. Economic Development: Past and Present. Prentice-Hall, 1967.