John Keats (2015). “The Complete Poetry of John Keats: Ode on a Grecian Urn + Ode to a Nightingale + Hyperion + Endymion + The Eve of St. Agnes + Isabella + Ode to Psyche + Lamia + Sonnets and more from one of the most beloved English Romantic poets”, p.186, e-artnow
William Shakespeare, Samuel Ayscough, Nicholas Rowe, Samuel Johnson (1791). “Shakspeare's Dramatic Works: With Explanatory Notes. To which is Now Added, a Copious Index to the Remarkable Passages and Words”, p.1320