Andra namnformer	Barger, Sonny
Identifikationskoder	0000000109535261 (isni) http://urn.fi/URN:NBN:fi:au:finaf:000134307 (finaf)
Källor	Barger, Ralph. Hell's Angel, 2008: t.p. (Ralph "Sonny" Barger) Library of Congress Authorities Home Page