VanLoon, G. W. . .., Patil,S. G, & Hugar, L. B. (2000). Agricultural sustainability: Strategies for assessment. Sage.
Chicago Edition CitationVanLoon, Gary W ., Patil,S. G, i L. B. Hugar. Agricultural Sustainability: Strategies for Assessment. New Delhi: Sage, 2000.
Cita MLAVanLoon, Gary W ., et al. Agricultural Sustainability: Strategies for Assessment. Sage, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.