Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

GILL, Richard T. Economic Development: Past and Present. New Jersey: Prentice-Hall, 1967.

Tohutoro MLA (9th ed.)

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