Gualberto, C. D., & Manuel, L. R. The economic cost of lahar in Pampanga (1991-1997).
Cita Chicago (17th ed.)Gualberto, Celeste D., i Lourdes R. Manuel. The Economic Cost of Lahar in Pampanga (1991-1997).
Cita MLA (9th ed.)Gualberto, Celeste D., i Lourdes R. Manuel. The Economic Cost of Lahar in Pampanga (1991-1997).
Atenció: Aquestes cites poden no estar 100% correctes.