Алкатрас (Bulgarian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Алкатрас" in Bulgarian language version.

refsWebsite

Global rank Bulgarian rank

1britannica.com

40^th place

9^th place

6^th place

11^th place

archive.org

Odier, Odier. The Rock: A History of Alcatraz: The Fort/The Prison. L'Image Odier, 1982. ISBN 0-9611632-0-8.

britannica.com

Alcatraz Island // Encyclopædia Britannica Online. Encyclopædia Britannica. Посетен на 20 август 2009.