O'Neill, H. B. (1971). Spatial planning in the small economy: A case study of Ireland. Praeger.
芝加哥风格引文O'Neill, Helen B. Spatial Planning in the Small Economy: A Case Study of Ireland. New York: Praeger, 1971.
MLA引文O'Neill, Helen B. Spatial Planning in the Small Economy: A Case Study of Ireland. Praeger, 1971.
警告：这些引文格式不一定是100％准确.