APA (7th ed.) Citation

Keats, J. Passages from letters and the preface to Endymion. [anthology].

Chicago Style (17th ed.) Citation

Keats, John. Passages from Letters and the Preface to Endymion. [anthology].

MLA (9th ed.) Citation

Keats, John. Passages from Letters and the Preface to Endymion. [anthology].

Warning: These citations may not always be 100% accurate.