Citace podle APA (7th ed.)
ebrary, Inc, & Robertson, G. P. (1999). Standard soil methods for long-term ecological research. Oxford University Press.
Citace podle Chicago (17th ed.)
ebrary, Inc, a G. P. Robertson. Standard Soil Methods for Long-term Ecological Research. New York: Oxford University Press, 1999.
Citace podle MLA (9th ed.)
ebrary, Inc, a G. P. Robertson. Standard Soil Methods for Long-term Ecological Research. Oxford University Press, 1999.
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