00487nam a22001817a 4500 LK-CoNLD 20260819045622.0 260819b |||||||| |||| 00| 0 eng d 9748567613 DOAL EN 631.58 DOA Beets Willem C. Raising and Sustaining Productivity of smallholder Farming Systems in the Tropics Alkmaar, Holland AGBE 1990 738.P;Map;Pic;ill BK 692 692 0 0 0 0 REF DOAL DOAL REF 2026-08-19 5359 0 5359 2026-08-19 04:56:47 2026-08-19 BK