Operação Crossbow (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Operação Crossbow" in Portuguese language version.

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1web.archive.org

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usaaf.net (Global: low place; Portuguese: low place)

D'Olier, Franklin; Alexander, Ball, Bowman, Galbraith, Likert, McNamee, Nitze, Russell, Searls, Wright (30 de setembro de 1945). «The Secondary Campaigns». United States Strategic Bombing Survey, Summary Report (European War). Consultado em 21 de abril de 2013. Arquivado do original em 16 de maio de 2008

web.archive.org (Global: 1^st place; Portuguese: 1^st place)

D'Olier, Franklin; Alexander, Ball, Bowman, Galbraith, Likert, McNamee, Nitze, Russell, Searls, Wright (30 de setembro de 1945). «The Secondary Campaigns». United States Strategic Bombing Survey, Summary Report (European War). Consultado em 21 de abril de 2013. Arquivado do original em 16 de maio de 2008

worldcat.org (Global: 5^th place; Portuguese: 5^th place)

Huzel, Dieter K (1962). Peenemünde to Canaveral. Englewood Cliffs, NJ: Prentice Hall. pp. 116, 164, 180, 187–9. ISBN 0-313-22928-7. OCLC 1374588. This was part of the effort to knock out German's secret weapons, known ... as "Operation Crossbow".