Otiende, J. E. (1991). An introduction to environmental education. Nairobi Univ Press.
芝加哥风格引文Otiende, James E. An Introduction to Environmental Education. Nairobi: Nairobi Univ Press, 1991.
MLA引文Otiende, James E. An Introduction to Environmental Education. Nairobi Univ Press, 1991.
警告：这些引文格式不一定是100％准确.