APA (7th ed.) Zitazioa

Hagen, E. E. (1963). Planning economic development. Richard D. Irwin.

Chicago Style (17th ed.) Zitazioa

Hagen, Everett E. Planning Economic Development. Homewood: Richard D. Irwin, 1963.

MLA (9th ed.) Zitazioa

Hagen, Everett E. Planning Economic Development. Richard D. Irwin, 1963.