Sanford, W. W., Usman, S., Obot, E. O., Isichei, A. O., & Wari, M. (2014). Relationship of Woody Plants to Herbaceous Production in Nigerian Savanna.
芝加哥风格引文Sanford, William W., Sugei Usman, Emmanuel O. Obot, Augustine O. Isichei, 与 Musa Wari. Relationship of Woody Plants to Herbaceous Production in Nigerian Savanna. 2014.
MLA引文Sanford, William W., et al. Relationship of Woody Plants to Herbaceous Production in Nigerian Savanna. 2014.
警告：这些引文格式不一定是100％准确.