Παραπομπή σε μορφή APA (7η εκδ.)

Saviotti, P., & Metcalfe, J. S. (1991). Evolutionary theories of economic and technological change: Present status and future prospects. Harwood Academic Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Saviotti, Paolo, και J. S. Metcalfe. Evolutionary Theories of Economic and Technological Change: Present Status and Future Prospects. Chur, Philadelphia: Harwood Academic Publishers, 1991.

Παραπομπή σε μορφή MLA (9th εκδ.)

Saviotti, Paolo, και J. S. Metcalfe. Evolutionary Theories of Economic and Technological Change: Present Status and Future Prospects. Harwood Academic Publishers, 1991.