Παραπομπή APA

(1991). Policy appraisal and the environment: : a guide for government departments. Colegate: HMSO.

Παραπομπή Chicago Style

Policy Appraisal and the Environment: : A Guide for Government Departments. Colegate: HMSO, 1991.

Παραπομπή MLA

Policy Appraisal and the Environment: : A Guide for Government Departments. Colegate: HMSO, 1991.

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