Παραπομπή APA

(1972). Towards a national materials policy: Basic data and issues an interim report. Washington, DC: National Commission on Materials Policy.

Παραπομπή Chicago Style

Towards a National Materials Policy: Basic Data and Issues an Interim Report. Washington, DC: National Commission on Materials Policy, 1972.

Παραπομπή MLA

Towards a National Materials Policy: Basic Data and Issues an Interim Report. Washington, DC: National Commission on Materials Policy, 1972.

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