Cita APA

Stone, B., & Stone, B. (1989). Fertilizer's greener pastures. Washington, D.C.: IFPRI.

Citación estilo Chicago

Stone, Bruce, y Bruce Stone. Fertilizer's Greener Pastures. Washington, D.C.: IFPRI, 1989.

Cita MLA

Stone, Bruce, y Bruce Stone. Fertilizer's Greener Pastures. Washington, D.C.: IFPRI, 1989.