Squires, V. R., & Sidahmed, A. E. (1998). Drylands: Sustainable use of rangelands into the twenty-first century. IFAD.
Citazione stile Chigago Style (17a edizione)Squires, V. R., e Ahmed E. Sidahmed. Drylands: Sustainable Use of Rangelands into the Twenty-first Century. Rome, Italy: IFAD, 1998.
Citatione MLA (8a ed.)Squires, V. R., e Ahmed E. Sidahmed. Drylands: Sustainable Use of Rangelands into the Twenty-first Century. IFAD, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.