zielinski, G. are there laws of planning? socialist planning and its relevance to mixed economics. the institute of national planning.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)zielinski, G. Are There Laws of Planning? Socialist Planning and Its Relevance to Mixed Economics. cairo: the institute of national planning.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)zielinski, G. Are There Laws of Planning? Socialist Planning and Its Relevance to Mixed Economics. the institute of national planning.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.