Παραπομπή APA

Guide to european sources of technical information. [s.l.]: Organisation for Economic Co-operation and Development.

Παραπομπή Chicago Style

Guide to European Sources of Technical Information. [s.l.]: Organisation for Economic Co-operation and Development.

Παραπομπή MLA

Guide to European Sources of Technical Information. [s.l.]: Organisation for Economic Co-operation and Development.

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