Lindemann-Matthies, P. (1999). Children's perception of biodiversity in everyday life and their preferences for species. [s.n.].
Chicago-viite (17. p.)Lindemann-Matthies, Petra. Children's Perception of Biodiversity in Everyday Life and Their Preferences for Species. Zürich: [s.n.], 1999.
MLA-viite (8. p.)Lindemann-Matthies, Petra. Children's Perception of Biodiversity in Everyday Life and Their Preferences for Species. [s.n.], 1999.
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