APA-ийн эшлэл(7 дахь хэвлэлт)

Sanford, W. W., Usman, S., Obot, E. O., Isichei, A. O., & Wari, M. (2014). Relationship of Woody Plants to Herbaceous Production in Nigerian Savanna.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Sanford, William W., Sugei Usman, Emmanuel O. Obot, Augustine O. Isichei, ба Musa Wari. Relationship of Woody Plants to Herbaceous Production in Nigerian Savanna. 2014.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Sanford, William W., et al. Relationship of Woody Plants to Herbaceous Production in Nigerian Savanna. 2014.