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Laws, Edward A.; Roth, Lauren (2004). «Impact of Stream Hardening on Water Quality and Metabolic Characteristics of Waimanalo and Kane'ohe Streams, O'ahu, Hawaiian Islands». University of Hawai'i Press. Pacific Science. 58 (2): 261–280. ISSN0030-8870. doi:10.1353/psc.2004.0019|hdl-access= requer |hdl= (ajuda)