APA (7th ed.) Citation

ScienceDirect (Online service), Sharkey, T. D., Holland, E. A., & Mooney, H. A. (1991). Trace gas emissions by plants. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Thomas D. Sharkey, Elizabeth A. Holland, and Harold A. Mooney. Trace Gas Emissions by Plants. San Diego: Academic Press, 1991.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Trace Gas Emissions by Plants. Academic Press, 1991.