APA
American Society for Testing and Materials, ASTM special technical publication 820, . (1983). Testing of peats and organic soils. Philadelphia, PA: American Society for Testing and Materials.
Chicago
American Society for Testing and Materials, ASTM special technical publication 820, . 1983. Testing of peats and organic soils. Philadelphia, PA: American Society for Testing and Materials.
Harvard
American Society for Testing and Materials, ASTM special technical publication 820, . (1983). Testing of peats and organic soils. Philadelphia, PA: American Society for Testing and Materials.
MLA
American Society for Testing and Materials, ASTM special technical publication 820, . Testing of peats and organic soils. Philadelphia, PA: American Society for Testing and Materials. 1983.