Gaston, P. (1978). W.D. Snodgrass. Twayne.
Tohutoru Kātū Chicago (17th ed.)Gaston, Paul. W.D. Snodgrass. Boston: Twayne, 1978.
Tohutoro MLA (9th ed.)Gaston, Paul. W.D. Snodgrass. Twayne, 1978.
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