James Christopher Monger: Mastodon Biography. www.allmusic.com. [dostęp 2010-07-26]. (ang.).
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Interview: Mastodon’s Bill Kelliher – “I’ve been sober for four months.”. www.thrashhits.com. [dostęp 2016-11-09]. Cytat: "It’s a difficult situation but I’m only human and your body can only take so much abuse – alcohol being the number one. It’s a personal thing and it’s something I have to deal with. I haven’t actually gone out on tour yet but hanging out with my crowd and the guys in the band, it’s easy to have a good time. We like to party. We like to drink… a lot. I’ve been sober for four months – since that happened – so I’m just going to try and keep that up but we’ll have to see what happens on the road. It’s a gruelling experience and I don’t wanna have to go through that again. It was pretty rough." (ang.).
MASTODON's BILL KELLIHER Celebrates One Year Of Sobriety. www.blabbermouth.net. [dostęp 2016-11-09]. Cytat: "Today's been one year of sobriety for me," he said last week. "It's been a struggle for many years. Everyone tells me the first year is the most difficult, when you've been an alcoholic most of your life." (ang.).
