Robert Louis Stevenson (2015). “Collected Memoirs, Travel Sketches and Island Literature of Robert Louis Stevenson: Autobiographical Writings and Essays by the prolific Scottish novelist, poet and travel writer, author of Treasure Island, The Strange Case of Dr. Jekyll and Mr. Hyde, Kidnapped & Catriona”, p.88, e-artnow
"Zachary Levi Talks Heroes Reborn, the Tangled Tv Series, the Nerd Machine, Comic-con & More". Interview with Christina Radish, collider.com. July 3, 2015.