@book{26072,
	author = {Habeeburrahman Pv and Sreedharan C (Guide)},
	title = {Utilisation of azolla for rice in acidic soils},
	publisher = {Department of Agronomy, College of Horticulture},
	year = {1983},
	address = {Vellanikkara},
	url = {https://krishikosh.egranth.ac.in/handle/1/5810131128}
}