1. Studies in mole drainage—interim report on an experimental drainage field;Childs;J. agric. Sci.,1943
2. The Principles of Field Drainage;Nicholson,1953
3. Die Dränung tagwasservernässter Böden;Schleifer,1954
4. Field drainage in the Western Jazreel Valley;Steinhardt,1972
5. Le drainage des sols argileux dans l'estuaire de la Charente;Coulbois,1972