Frederick Burr Opper (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Frederick Burr Opper" in Spanish language version.

refsWebsite
Global rank Spanish rank
1st place
1st place
40th place
52nd place
low place
low place
3rd place
7th place
7th place
15th place

books.google.com

britannica.com

wwwa.britannica.com

las9musas.net

nytimes.com

select.nytimes.com

web.archive.org