The british engineers' handbook 1962: An annual classified handbook of members, their manufactures, trade names and trade marks. London: The British Engineers' Association.
Παραπομπή Chicago StyleThe British Engineers' Handbook 1962: An Annual Classified Handbook of Members, Their Manufactures, Trade Names and Trade Marks. London: The British Engineers' Association.
Παραπομπή MLAThe British Engineers' Handbook 1962: An Annual Classified Handbook of Members, Their Manufactures, Trade Names and Trade Marks. London: The British Engineers' Association.
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