APA-referens (7:e uppl.)

Gibb, A. (1976). A "dual modern economics" growth model [microfilm]. Photoduplication Service,University of the Philippines Library.

Chicago-referens (17:e uppl.)

Gibb, Arthur,Jr. A "Dual Modern Economics" Growth Model [microfilm]. Quezon City: Photoduplication Service,University of the Philippines Library, 1976.

MLA-referens (9:e uppl.)

Gibb, Arthur,Jr. A "Dual Modern Economics" Growth Model [microfilm]. Photoduplication Service,University of the Philippines Library, 1976.

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