(1987). New approaches to monitoring aquatic ecosystems. ASTM.
Trích dẫn kiểu ChicagoNew Approaches to Monitoring Aquatic Ecosystems. ASTM, 1987.
MLA引文New Approaches to Monitoring Aquatic Ecosystems. ASTM, 1987.
警告：這些引文格式不一定是100％准確.
APA引文