Caulfield, I., Schultz, J., Clarke, M., & Stewart John. (1989). Planning for change: Strategic planning in local government. Longman in association with the Local Government Training Board.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Caulfield, Ian, John Schultz, Michael Clarke, و Stewart John. Planning for Change: Strategic Planning in Local Government. Harlow: Longman in association with the Local Government Training Board, 1989.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Caulfield, Ian, et al. Planning for Change: Strategic Planning in Local Government. Longman in association with the Local Government Training Board, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.