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

Manylion Llyfryddiaeth
Prif Awdur:	Balatan, Sigfred C.
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Quezon City, Philippines Desktop Publishing 1993.
Pynciau:	Conservation of natural resources. Environmental protection - Citizen participation..