Lua APA (7ú heag.)
ebrary, Inc, Amersfoort, H., & Kamphuis, P. H. (2010). May 1940: The battle for the Netherlands. Brill.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, H. Amersfoort, agus P. H. Kamphuis. May 1940: The Battle for the Netherlands. Leiden ; Boston: Brill, 2010.
Lua MLA (9ú heag.)
ebrary, Inc, et al. May 1940: The Battle for the Netherlands. Brill, 2010.
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