The Professional Geographer. Cambridge University Press.
芝加哥风格引文The Professional Geographer. Cambridge University Press.
MLA引文The Professional Geographer. Cambridge University Press.
警告：这些引文格式不一定是100％准确.
APA引文
The Professional Geographer. Cambridge University Press.
芝加哥风格引文The Professional Geographer. Cambridge University Press.
MLA引文The Professional Geographer. Cambridge University Press.