@book{63339,
	author = {Lerner, Abba Ptachya, and Ben-Shahar, Haim,},
	title = {The economics of efficiency and growth :},
	publisher = {Ballinger Pub. Co.,},
	year = {1975.},
	address = {Cambridge, Mass. :},
	note = {Based on the authors' Kalkalah yeʻilah.}
}