Kurt Vonnegut (2016). “If This Isn't Nice What Is? (Much) Expanded Second Edition: The Graduation Speeches and Other Words to Live By”, p.131, RosettaBooks
H. P. Lovecraft (2014). “Complete Collection Of H. P. Lovecraft - 150 eBooks With 100+ Audiobooks (Complete Collection Of Lovecraft's Fiction, Juvenilia, Poems, Essays And Collaborations)”, p.11, Ageless Reads
George Carlin (2015). “3 x Carlin: An Orgy of George including Brain Droppings, Napalm and Silly Putty, and When Will Jesus Bring the Pork Chops?”, p.86, Hachette UK