(1997). Linkage methods for environment and health analysis. UNEP.
Cita Chicago (17th ed.)Linkage Methods for Environment and Health Analysis. Ginebra: UNEP, 1997.
Cita MLA (9th ed.)Linkage Methods for Environment and Health Analysis. UNEP, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.