Better Farming Series 28. Water: Where Water Comes From (FAO Better Farming series, 1981, 31 p.)

Better Farming Series 28. Water: Where Water Comes From (FAO Better Farming series, 1981, 31 p.)

		(introduction...)
		Preface
		Why we study water
		When rain falls
		Water in the ground
		Where to find water in the ground
		Water on the surface
		Where to find surface water