Journal of Irrigation Engineering and Rural Planning. No. 21 (1991). 

 - Tokyo : Japanese Society of Irrigation, Drainage and Reclamation Engineering.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Editorial, Papers, Reports, Information, Book Reviews for 1991 in No. 21. 
<br/><br/>Editorial : For the creation of Fertile and comfortable rural areas and earth / Toshio Tabuchi. Papers : An example of two-dimensional consolidation testing and numerical procedures for embankment materials / Sohji Inoue. Estimation of effective rainfall in wet season paddy - observational studies on water requirement of lowland rice in Thailand / Masakazu Mizutani, Bisweswar Rath, Binayak Prasad Mohanty and Prasanta Kumar Kalita. Concreting in tropical countries - a case study in semi-arid region / Kazunori Kato. Reports : Agricultural development and environmental conservation (Policy of FAO) / Hikaru Tsutsui. 14th Congress of the International Commission on Irrigation and Drainage (ICID) - Summaries and reviews / Michio Nakahara. 15th International Congress on Water Pollution and Control / Hideo Nakasone. Information : International Workshop on Soil and Water Engineering for Paddy Field Management. Book Reviews : Content of the Journal of JSIDRE. Contents of the transactions of JSIDRE.