ebrary, Inc. (2010). Directory of publishing 2011: United Kingdom and the Republic of Ireland (36th ed.). Continuum.
Citace podle Chicago (17th ed.)ebrary, Inc. Directory of Publishing 2011: United Kingdom and the Republic of Ireland. 36th ed. London: Continuum, 2010.
Citace podle MLA (9th ed.)ebrary, Inc. Directory of Publishing 2011: United Kingdom and the Republic of Ireland. 36th ed. Continuum, 2010.
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