Gaya APA

WEITZEL, R. (1979). Methods and measurementsof periphyton communities A Review R.L. Weitzel (-). Philadelphia: ASTM STP.

Gaya MLA

WEITZEL, R.L.. "Methods and measurementsof periphyton communities A Review R.L. Weitzel". - Philadelphia: ASTM STP, 1979. FAKULTAS TEKNIK.