Παραπομπή σε μορφή APA (7η εκδ.)

Goddard, F. O. (1969). A two-sector model of economic growth with technological progress. University of Florida Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Goddard, Frederick Owen. A Two-sector Model of Economic Growth with Technological Progress. Gainesville: University of Florida Press, 1969.

Παραπομπή σε μορφή MLA (8th εκδ.)

Goddard, Frederick Owen. A Two-sector Model of Economic Growth with Technological Progress. University of Florida Press, 1969.