Gaya APA

Gragnolati, M. et al (2011). Growing Old in an Older Brazil: implications of population aging grwoth, poverty, public finance, and service delivery . Washington D.C.: Washington DC.The World Bank.

Gaya MLA

Gragnolati, Michele. et al. "Growing Old in an Older Brazil: implications of population aging grwoth, poverty, public finance, and service delivery". Washington D.C.: Washington DC.The World Bank, 2011. Koleksi Elektronik.