Why did you let this happen? (photo-reportage).

Xehetasun bibliografikoak
Egile nagusia:	Balatan, Sigfred C.
Formatua:	Liburua
Hizkuntza:	English
Argitaratua:	Quezon City, Philippines Desktop Publishing 1993.
Gaiak:	Conservation of natural resources. Environmental protection - Citizen participation..