@book{15685,
	author = {Cooper, Christopher (Christopher E.) and Παπακωνσταντίνου, Πέτρος, },
	title = {Ύλη / },
	publisher = {Δεληθανάσης - Ερευνητές, },
	year = {c1992.},
	series = {Ανακαλύπτω την Επιστήμη ; },
	address = {Αθήνα : },
	note = {Τίτλος πρωτοτύπου: Matter.}
}