APA (7th ed.) Citation

Vetter, I. (1988). "Checkmate" or, "A heavenly tragedy" and its earthly consequences.

Chicago Style (17th ed.) Citation

Vetter, Isolde. "Checkmate" or, "A Heavenly Tragedy" and Its Earthly Consequences. 1988.

MLA (9th ed.) Citation

Vetter, Isolde. "Checkmate" or, "A Heavenly Tragedy" and Its Earthly Consequences. 1988.

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