Wergin, Niels-Erik and White, Geoff (2012) Collective bargaining in the United Kingdom. In: Hekimler, Alpay and Ring, Gerhard, (eds.) Tarifrecht in Europa. Nomos Verlagsgesellschaft, Baden-Baden, Germany, pp. 131-158. ISBN 978-3-8329-6812-0

Wergin, Niels-Erik and White, Geoff (2010) Britanya'da toplu sözleşme sistemi [System of collective bargaining in Britain]. In: Hekimler, Alpay, (ed.) Avrupa Birliği Üyesi Ülkelerde ve Türkiye'de Toplu Sözleşme Sistemleri [Collective Bargaining Systems in European Union Member States and Turkey]. Legal Yayincilik, Istanbul, Turkey, pp. 105-134. ISBN 9756054354108