Tohutoro APA (7th ed.)

Horn, K. (1967). Long-term Planning. The Institute of National Planning.

Tohutoru Kātū Chicago (17th ed.)

Horn, Karl-Heinz. Long-term Planning. Cairo: The Institute of National Planning, 1967.

Tohutoro MLA (9th ed.)

Horn, Karl-Heinz. Long-term Planning. The Institute of National Planning, 1967.

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