Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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