DeFalco, Tom; Sanderson, Peter; Brevoort, Tom; Teitelbaum, Michael; Wallace, Daniel; Darling, Andrew; Forbeck, Matt; Cowsill, Alan et al. (2019). The Marvel Encyclopedia. DK Publishing. p. 296. ISBN978-1-4654-7890-0.Se sugiere usar |número-autores= (ayuda)
Manning, Matthew K.; Gilbert, Laura (2012). «1960s». Spider-Man Chronicle Celebrating 50 Years of Web-Slinging. Dorling Kindersley. p. 36. ISBN978-0756692360. «Now it was time for [John Romita, Sr.] to introduce a new Spidey villain with the help of [Stan] Lee. Out of their pooled creative energies Rhino was born, a monstrous behemoth trapped in a durable rhinoceros suit.»