@book{6780,
	author = {Ψαρρού, Μάγδα K. and Ζαφειρόπουλος, Κώστας},
	title = {Επιστημονική έρευνα : },
	publisher = {Τυπωθήτω, },
	year = {c2001 },
	address = {Αθήνα : }
}