APA-čujuhus (7. p.)
Klaasen, R. (1979). How green is my mountain. Inter Vasity Press.
Chicago-čujuhus (17. p.)
Klaasen, Ruth. How Green Is My Mountain. Illinois: Inter Vasity Press, 1979.
MLA-čujuhus (9. p.)
Klaasen, Ruth. How Green Is My Mountain. Inter Vasity Press, 1979.
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