Pernia, E. d. M. (1980). A note on migration and fertility. School of Economics, University of the Philippines.
Цитирование в стиле Чикаго (17-е изд.)Pernia, Ernesto del Mar. A Note on Migration and Fertility. [Quezon City]: School of Economics, University of the Philippines, 1980.
Цитирование MLA (9-е изд.)Pernia, Ernesto del Mar. A Note on Migration and Fertility. School of Economics, University of the Philippines, 1980.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.