APA (7th ed.) Citation

Listowel, J. (1978). A Habsburg tragedy: Crown Prince Rudolf. Ascent Books.

Chicago Style (17th ed.) Citation

Listowel, Judith. A Habsburg Tragedy: Crown Prince Rudolf. London: Ascent Books, 1978.

MLA (8th ed.) Citation

Listowel, Judith. A Habsburg Tragedy: Crown Prince Rudolf. Ascent Books, 1978.

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