. . . "VIAF" . "Singh" . "Chercheur, South Asia regional programme of the international water management institute, Inde (en 2007)"@fr . . "16171015"^^ . . "Groundwater management in India : physical, institutional and policy alternatives / M. Dinesh Kumar ; with contributions from O. P. Singh, 2007. - . - VIAF. - https://viaf.org/processed/LCn%202006064149. - 2016-12-23"@fr . . . . "O. P. Singh" . . . . . . "2010-01-13" . . "2016-12-23" . "O. P." . "000000007367711X" . . . . "O. P. Singh"@fr . "Chercheur, South Asia regional programme of the international water management institute, Inde (en 2007)" . "2013-08-07"^^ . "Chercheur, South Asia regional programme of the international water management institute, Inde (en 2007)" . "male" .