APA (7th ed.) Zitazioa

(1964). Planning and economic development / with a foreword by Oskar Lange.

Chicago Style (17th ed.) Zitazioa

Planning and Economic Development / with a Foreword by Oskar Lange. 1964.

MLA (9th ed.) Zitazioa

Planning and Economic Development / with a Foreword by Oskar Lange. 1964.

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