Gibson, Stuart W.
Practical welding
Mac Millan Press , 1994
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Jones, R.N.
Practical genetics
John Wiley & Sons, 1990
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Palmer, Claude Irwin
Practical mathematics
McGraw-Hill, 1994
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Barker, D.J.P.
Practical epidemiology
Livingstone, 1976
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Sharp, H. Oakley
Practical photogrammetry
Macmillan, 1951
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