Rat Salad: Black Sabbath, The Classic Years, 1969--1975 by Paul Wilkinson
Sabotage – Black Sabbath Online
The Best of Black Sabbath - Wikipedia
BLACK SABBATH Never Say Die! reviews
Sabbath Bloody Sabbath (song) - Wikipedia
Black Sabbath MOB RULES Vinyl Record
Black Sabbath (compilation) - Wikipedia
Black Sabbath - Wikipedia
Black Sabbath, Wiki
Remember The First Time You Heard…Black Sabbath? – Every record tells a story
Is there a worse front and back album cover than Black Sabbath's 'Sabotage'? - Quora
Album Art Exchange - The Rules of Hell by Black Sabbath - Album Cover Art
Black Sabbath - Wikipedia
Metal Origins: Black Sabbath? Yes! — But Who Else Was Involved?, by Gregory Sadler, Heavy Metal Philosopher