Παραπομπή APA

Tacis Technical Dissemination Project. (1997). Let's learn about energy: A practical handbook for teachers. Brussels: European Commission.

Παραπομπή Chicago Style

Tacis Technical Dissemination Project. Let's Learn About Energy: A Practical Handbook for Teachers. Brussels: European Commission, 1997.

Παραπομπή MLA

Tacis Technical Dissemination Project. Let's Learn About Energy: A Practical Handbook for Teachers. Brussels: European Commission, 1997.

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