Unesco. (1971). The surveillance and prediction of volcanic activity: A review of methods and techniques. Unesco.
芝加哥风格引文Unesco. The Surveillance and Prediction of Volcanic Activity: A Review of Methods and Techniques. Paris: Unesco, 1971.
MLA引文Unesco. The Surveillance and Prediction of Volcanic Activity: A Review of Methods and Techniques. Unesco, 1971.
警告：这些引文格式不一定是100％准确.