Allred, W. M. (1960). System of government in Peru. Philippine Journal of Public Administration.
Citazione stile Chigago Style (17a edizione)Allred, Wells M. "System of Government in Peru." Philippine Journal of Public Administration 1960.
Citatione MLA (9a ed.)Allred, Wells M. "System of Government in Peru." Philippine Journal of Public Administration, 1960.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.