World Health Organization. (2003). Concise International chemical Assessment Document; Thiourrea. IOMC.
Chicago-viite (17. p.)World Health Organization. Concise International Chemical Assessment Document; Thiourrea. Ginebra: IOMC, 2003.
MLA-viite (9. p.)World Health Organization. Concise International Chemical Assessment Document; Thiourrea. IOMC, 2003.
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