APA (7th ed.) Citation

ebrary, Inc, & Robertson, G. P. (1999). Standard soil methods for long-term ecological research. Oxford University Press.

Chicago Style (17th ed.) Citation

ebrary, Inc, and G. P. Robertson. Standard Soil Methods for Long-term Ecological Research. New York: Oxford University Press, 1999.

MLA (9th ed.) Citation

ebrary, Inc, and G. P. Robertson. Standard Soil Methods for Long-term Ecological Research. Oxford University Press, 1999.