Cofnodi Dyfyniadau
Dyfyniad APA
Hanwell, J. D., & Newson, M. D. (1973). Techniques in physical geography. Macmillan.
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Dyfyniad Arddull Chicago
Hanwell, James D., and Malcolm David Newson. Techniques in Physical Geography. London: Macmillan, 1973.
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Dyfyniad MLA
Hanwell, James D., and Malcolm David Newson. Techniques in Physical Geography. Macmillan, 1973.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.