(1966). The engineering index 1966: (registered United States, Great Britain and Canada). New York: Engineering Index.
Παραπομπή Chicago StyleThe Engineering Index 1966: (registered United States, Great Britain and Canada). New York: Engineering Index, 1966.
Παραπομπή MLAThe Engineering Index 1966: (registered United States, Great Britain and Canada). New York: Engineering Index, 1966.
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