51 Years Ago – Black Sabbath Release the Drug-Fueled 'Vol. 4

They almost called it 'Snowblind.'

Michael Christopher - Loudwire

Volume 4 – Black Sabbath Online

On the back of Black Sabbath's Vol. 4 they thank the “great COKE-Cola Company of Los Angeles.” They were referring to cocaine. All four members had enormous cocaine habits by the time

50 Years Ago, Black Sabbath Pushed Heavy Metal Forward with Vol. 4

D.R.U.G.S. RELEASE NEW SINGLES AND ANNOUNCE ALBUM

How Black Sabbath Managed to Release 'Vol. 4' Amid Problems

Remembering when Black Sabbath spent more on cocaine while making 'Vol. 4' than on the album itself - Far Out Magazine

Volume 4 – Black Sabbath Online

How Black Sabbath Managed to Release 'Vol. 4' Amid Problems

51 Years Ago – Black Sabbath Release the Drug-Fueled 'Vol. 4

Rob Halford - Wikipedia

Black Sabbath Master of Reality

BLACK SABBATH - Black Sabbath, Vol.4 - Music

How Black Sabbath Managed to Release 'Vol. 4' Amid Problems