Παραπομπή σε μορφή APA (7η εκδ.)

Williamson, J. G. (1968). Income growth and savings. Institute of Economic Development and Research, School of Economics, University of the Philippines.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Williamson, Jeffrey G. Income Growth and Savings. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1968.

Παραπομπή σε μορφή MLA (9th εκδ.)

Williamson, Jeffrey G. Income Growth and Savings. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1968.