na INLIS000000000001395 20240722085259 0010-0724000066 ta 240722 0 0-7923-1881-1 631.95 631.95 FRI s Frist Penning de Vries Systems Approaches for Agricultural Development Pertama Netherlands : Kluwa Academic Publisher, 1993 542 hlm : ilus ; 24 cm Agrikultur 86/I/2024