APA-viite (7. p.)
ebrary, Inc, & Madronová, L. (2011). Humic acids from raw materials of the Czech Republic. Nova Science Publishers.
Chicago-viite (17. p.)
ebrary, Inc, ja Libuše Madronová. Humic Acids from Raw Materials of the Czech Republic. New York: Nova Science Publishers, 2011.
MLA-viite (9. p.)
ebrary, Inc, ja Libuše Madronová. Humic Acids from Raw Materials of the Czech Republic. Nova Science Publishers, 2011.
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