Balatan, S. C. (1993). Why did you let this happen?: Photo reportage. Foundation for the Philippine Environment, Philippine Rural Reconstruction Movement.
Chicago-viite (17. p.)Balatan, Sigfred C. Why Did You Let This Happen?: Photo Reportage. Quezon City: Foundation for the Philippine Environment, Philippine Rural Reconstruction Movement, 1993.
MLA-viite (9. p.)Balatan, Sigfred C. Why Did You Let This Happen?: Photo Reportage. Foundation for the Philippine Environment, Philippine Rural Reconstruction Movement, 1993.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.