APA (7th ed.) Citation

Cliff Notes. (1989). Heart of darkness and the secret sharer: Notes (rev. ed.). Cliff Notes.

Chicago Style (17th ed.) Citation

Cliff Notes. Heart of Darkness and the Secret Sharer: Notes. rev. ed. Lincoln, Nebraska: Cliff Notes, 1989.

MLA (9th ed.) Citation

Cliff Notes. Heart of Darkness and the Secret Sharer: Notes. rev. ed. Cliff Notes, 1989.