Gilbert, A. (1974). Latin American development: A geographical perspective. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Gilbert, Alan. Latin American Development: A Geographical Perspective. Harmondsworth, Eng: Penguin Books, 1974.
Lua MLA (9ú heag.)Gilbert, Alan. Latin American Development: A Geographical Perspective. Penguin Books, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.