ebrary, Inc. (2010). Directory of publishing 2011: United Kingdom and the Republic of Ireland (36th ed.). Continuum.
Citazione stile Chigago Style (17a edizione)ebrary, Inc. Directory of Publishing 2011: United Kingdom and the Republic of Ireland. 36th ed. London: Continuum, 2010.
Citatione MLA (9a ed.)ebrary, Inc. Directory of Publishing 2011: United Kingdom and the Republic of Ireland. 36th ed. Continuum, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.