Squires, V. R., & Sidahmed, A. E. (1998). Drylands: Sustainable use of rangelands into the twenty-first century. IFAD.

Squires, V. R., and Ahmed E. Sidahmed. Drylands: Sustainable Use of Rangelands into the Twenty-first Century. Rome, Italy: IFAD, 1998.

Squires, V. R., and Ahmed E. Sidahmed. Drylands: Sustainable Use of Rangelands into the Twenty-first Century. IFAD, 1998.