Barnouw, A. J. (1969). Monthly letters: On the culture and history of the Netherlands. Van Gorcum.
Lua i Stíl Chicago (17ú heag.)Barnouw, Adriaan Jacob. Monthly Letters: On the Culture and History of the Netherlands. Assen: Van Gorcum, 1969.
Lua MLA (9ú heag.)Barnouw, Adriaan Jacob. Monthly Letters: On the Culture and History of the Netherlands. Van Gorcum, 1969.
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