Michels, A. (1998). Effects of sewage water on diatoms (Bacillariophyceae) and water quality in two tropical streams in Costa Rica.
Chicago Style aipamenaMichels, Astrid. Effects of Sewage Water On Diatoms (Bacillariophyceae) and Water Quality in Two Tropical Streams in Costa Rica. 1998.
MLA aipamenaMichels, Astrid. Effects of Sewage Water On Diatoms (Bacillariophyceae) and Water Quality in Two Tropical Streams in Costa Rica. 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.