1.
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Edinburgh [Scotland] : Chambers, 2004 (Boston, Mass. : Credo Reference, 2012.)
|
2.
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Philadelphia, Chilton Book Co. [1972]
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3.
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New York : Oxford University Press, 1997.
|
4.
|
New York : Oxford University Press, 1997.
|
5.
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Edinburgh : Chambers, c2004.
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6.
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Detroit : Gale Research Co., c1977.
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7.
|
New York : Elsevier/Nelson Books, c1980.
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