@book{26124,
	author = {Singh, Phundan and Narayanam, S.S.},
	title = {Biometrical techniques in plant breeding/ by  Phundan Singh and S.S. Narayanam},
	publisher = {Kalyani Publishers;},
	year = {2009.},
	address = {Ludhiana:},
	edition = {4th. rev. ed.}
}