Ash, J. S., Atkins, J., Ash, C., & Shirihai, H. (2009). Birds of Ethiopia and Eritrea: An atlas of distribution. Christopher Helm.
芝加哥风格引文Ash, J. S., John Atkins, Caroline Ash, 与 Hadoram Shirihai. Birds of Ethiopia and Eritrea: An Atlas of Distribution. London: Christopher Helm, 2009.
MLA引文Ash, J. S., et al. Birds of Ethiopia and Eritrea: An Atlas of Distribution. Christopher Helm, 2009.
警告：这些引文格式不一定是100％准确.