Book Review: Harmonization, Equivalence and Mutual Recognition of Standards in WTO Law, by Humberto Zúñiga Schroder. (Kluwer Law International, 2011) - Global Trade and Customs Journal View Book Review: Harmonization, Equivalence and Mutual Recognition of Standards in WTO Law, by Humberto Zúñiga Schroder. (Kluwer Law International, 2011) by - Global Trade and Customs Journal Book Review: Harmonization, Equivalence and Mutual Recognition of Standards in WTO Law, by Humberto Zúñiga Schroder. (Kluwer Law International, 2011) 7 2 Global Trade and Customs Journal