Book Review: Renvoi préjudiciel et marge d’appréciation du juge national. Preliminary ruling procedure and margin of appreciation of the national judge, edited by Eleftheria Nefr - Common Market Law Review View Book Review: Renvoi préjudiciel et marge d’appréciation du juge national. Preliminary ruling procedure and margin of appreciation of the national judge, edited by Eleftheria Nefr by - Common Market Law Review Book Review: Renvoi préjudiciel et marge d’appréciation du juge national. Preliminary ruling procedure and margin of appreciation of the national judge, edited by Eleftheria Nefr 53 6 Common Market Law Review