Παραπομπή σε μορφή APA (7η εκδ.)

Koop, G., Osiewalski, J., & Steel, M. F. (1995). Measuring the sources of output growth in a panel of countries. Center for Operations Research & Econometrics.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Koop, Gary, Jacek Osiewalski, και Mark F.J Steel. Measuring the Sources of Output Growth in a Panel of Countries. Belgium: Center for Operations Research & Econometrics, 1995.

Παραπομπή σε μορφή MLA (9th εκδ.)

Koop, Gary, et al. Measuring the Sources of Output Growth in a Panel of Countries. Center for Operations Research & Econometrics, 1995.