MAP20070022546Audit and reduction manual for industrial emissions and wastes / [prepared on behalf of the United Nations Environment Programme-Industry and Environment Office (UNEP/IEO) and the United Nations Industrial Development Organization (UNIDO)]. — [Nueva York] : United Nations, 1991V, 127 p. ; 30 cmSumario: Introduction to waste auditing -- The audit procedure (Preassessment. Material balance: process inputs and outputs. Synthesis) -- Case studies (Beer production. Leather manufacture. Printed circuit board manufacture) -- Resource section (Wastewater and gas flow measurement methods. Glossary. References. UNEP/IEO cleaner production programme)