Não informado. (1970). Brookings Papers on Economic Activity. Brookings Institution.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Brookings Papers on Economic Activity. Washington: Brookings Institution, 1970.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Brookings Papers on Economic Activity. Brookings Institution, 1970.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.