Ritchie, J. (2008). Understanding naturalism. Acumen.
芝加哥风格引文Ritchie, Jack. Understanding Naturalism. Stocksfield [England]: Acumen, 2008.
MLA引文Ritchie, Jack. Understanding Naturalism. Acumen, 2008.
警告：这些引文格式不一定是100％准确.
APA引文