00794nam a2200253Ia 4500 0000009669 20251012174509.0 720717m19729999enkab b 001 0 eng 0249440431 (v. 1) 0249440865 9780249440430 (v. 1) 9780249440867 SB110 .A77 1972 631/.091/54 Crop production in dry regions [by] I. Arnon. London, Leonard Hill 1972- v illus., maps 24 cm. Includes bibliographical references. v. 1. background and principles. -- v. 2. systematic treatment of the principal crops. Arid regions agriculture. Arid Regions Crop Zones Plant science monograph. 4755 4755