Japanese submarine Ro-12 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Japanese submarine Ro-12" in English language version.

refsWebsite

Global rank English rank

1ijnsubsite.info

low place

low place

1books.google.com

3^rd place

3^rd place

books.google.com

Airship Investigation: Report of Col. Henry Breckenridge, Washington, D.C.: Government Printing Office, 1933, p. 54.

ijnsubsite.info

"RO-12 ex No-20". iijnsubsite.info. 2017. Retrieved 16 October 2020.