International Atomic Energy Agency. (1977). Soil organic matter studies. International Atomic Energy Agency.
Cita Chicago (17th ed.)International Atomic Energy Agency. Soil Organic Matter Studies. Viena: International Atomic Energy Agency, 1977.
Cita MLA (9th ed.)International Atomic Energy Agency. Soil Organic Matter Studies. International Atomic Energy Agency, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.