Timings, R.L. (Roger Leslie), 1927-, author
Longman, 1991
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Timings, R.L. (Roger Leslie), 1927-, author
Longman Scientific, 1989
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Van Vlack, Lawrence H., author
Addison-Wesley, 1980
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John, V.B., author
Macmillan, 1983
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John, V.B., author
Macmillan, 1977
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