Ngā kupu hautoa kōpae

Tohutoro APA (7th ed.)
Martin, W. (1975). Screwtape writes again. Vision House.
Tohutoru Kātū Chicago (17th ed.)
Martin, Walter. Screwtape Writes Again. Santa Ana: Vision House, 1975.
Tohutoro MLA (9th ed.)
Martin, Walter. Screwtape Writes Again. Vision House, 1975.
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