Παραπομπή APA

Semler, E. G. (1971). Mechanical engineering: A decade of progress, 1960-1970. London: Institution of Mechanical Engineers.

Παραπομπή Chicago Style

Semler, Eric George. Mechanical Engineering: A Decade of Progress, 1960-1970. London: Institution of Mechanical Engineers, 1971.

Παραπομπή MLA

Semler, Eric George. Mechanical Engineering: A Decade of Progress, 1960-1970. London: Institution of Mechanical Engineers, 1971.

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