Tohutoro APA (7th ed.)

Engert, M. (1969). Problems of Long-term Planning in the German Democratic Republic. The Institute of National Planning.

Tohutoru Kātū Chicago (17th ed.)

Engert, Manfred. Problems of Long-term Planning in the German Democratic Republic. Cairo: The Institute of National Planning, 1969.

Tohutoro MLA (9th ed.)

Engert, Manfred. Problems of Long-term Planning in the German Democratic Republic. The Institute of National Planning, 1969.

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