Valera, J. B. (1989). Rural development: Concepts and components. Philippine Journal of Public Administration.
Chicago-viite (17. p.)Valera, Jaime B. "Rural Development: Concepts and Components." Philippine Journal of Public Administration 1989.
MLA-viite (9. p.)Valera, Jaime B. "Rural Development: Concepts and Components." Philippine Journal of Public Administration, 1989.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.