APA (7th ed.) Citation

ScienceDirect (Online service) & Piccolo, A. (1996). Humic substances in terrestrial ecosystems. Elsevier.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service) and Alessandro Piccolo. Humic Substances in Terrestrial Ecosystems. New York: Elsevier, 1996.

MLA (9th ed.) Citation

ScienceDirect (Online service) and Alessandro Piccolo. Humic Substances in Terrestrial Ecosystems. Elsevier, 1996.

Warning: These citations may not always be 100% accurate.