@book {Homans1974,
	title = {Social Behaviour: Its Elementary Forms},
	year = {1974},
	publisher = {Harcourt Brace Jovanovich},
	organization = {Harcourt Brace Jovanovich},
	edition = {2, revised},
	address = {New York},
	author = {Homans, Gеorge}
}
