Spare our future generations from a painful and brutish existence - Alvarez, Heherson T. ([place of publication not identified] [publisher not identified], 1990)
[Sponsorship speech on the logging ban Senate Bill No. 1404, delivered on February 8, 1990]. Photocopied from Speeches of senators : a collection of speeches by the senators of the Philippines. Manila : Senate of the Congress of the Philippines, 1990.