1.
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Amherst : University of Massachusetts Press, 1986.
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2.
|
Cambridge, Mass. : Belknap Press, c1983.
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3.
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[Denver, CO] : U.S. Geological Survey, 1990.
I 19.76: 90-721 |
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4.
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London : [s.n.], Printed in the Year M.DCC.XLIX. [1749]
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5.
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Newbury Park, California : Sage Publications, [1991] ©1991
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6.
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[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by Books and Open-File Sales, 1992.
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7.
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Caerfyrddin : Argraphwyd dros yr awdwr gan I. Daniel, yn Heol-y-Farchnad Isaf, M.DCC.XCIV. [1794]
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8.
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Bristol : printed and sold by J[ohn] Mills, No. 10, Castle-Street, 1800.
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9.
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Carbondale, Southern Illinois University Press [1974]
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10.
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London ; New York, New York : Routledge, 2018. 1977
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