Cita APA (7th ed.)

American Society for Testing and Materials. Committee D-19 on Water & Weitzel, R. L. (1979). Methods and measurements of periphyton communities: A review. ASTM.

Cita Chicago (17th ed.)

American Society for Testing and Materials. Committee D-19 on Water i R. L. Weitzel. Methods and Measurements of Periphyton Communities: A Review. Philadelphia, Pa.: ASTM, 1979.

Cita MLA (8th ed.)

American Society for Testing and Materials. Committee D-19 on Water i R. L. Weitzel. Methods and Measurements of Periphyton Communities: A Review. ASTM, 1979.