Hall, R. K. (1976). Outdoor recreation provision in Canada. Oxford Polytechnic.
芝加哥风格引文Hall, Robert K. Outdoor Recreation Provision in Canada. [Oxford, Oxfordshire]: Oxford Polytechnic, 1976.
MLA引文Hall, Robert K. Outdoor Recreation Provision in Canada. Oxford Polytechnic, 1976.
警告：这些引文格式不一定是100％准确.