若昂四世 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "若昂四世" in Chinese language version.

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John IV | king of Portugal. Encyclopedia Britannica. [2021-05-27]. （原始内容存档于2014-10-09）（英语）.

John IV | king of Portugal. Encyclopedia Britannica. [2021-05-27]. （原始内容存档于2014-10-09）（英语）.
Chisholm, Hugh. The encyclopædia britannica: a dictionary of arts, sciences ..., Volume 22. The encyclopedia. : 148 [2020-01-29]. （原始内容存档于2021-04-28）.
D.A. Brading. The First America: The Spanish Monarchy, Creole Patriots and the Liberal State 1492-1866. Cambridge University Press. 24 September 1993: 213 [2020-01-29]. ISBN 978-0-521-44796-6. （原始内容存档于2021-04-11）.