(1987). New approaches to monitoring aquatic ecosystems. ASTM.
Trích dẫn kiểu ChicagoNew Approaches to Monitoring Aquatic Ecosystems. ASTM, 1987.
MLA CitationNew Approaches to Monitoring Aquatic Ecosystems. ASTM, 1987.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.