Tohutoro APA (7th ed.)
Klaasen, R. (1979). How green is my mountain. Inter Vasity Press.
Tohutoru Kātū Chicago (17th ed.)
Klaasen, Ruth. How Green Is My Mountain. Illinois: Inter Vasity Press, 1979.
Tohutoro MLA (9th ed.)
Klaasen, Ruth. How Green Is My Mountain. Inter Vasity Press, 1979.
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