APA (7th ed.) Citation

Ghisalberti, M., & Troubridge, U. V. (1949). Christopher Columbus: A romance. Heinemann.

Chicago Style (17th ed.) Citation

Ghisalberti, Mario, and Una Vincenzo Troubridge. Christopher Columbus: A Romance. Lond.: Heinemann, 1949.

MLA (8th ed.) Citation

Ghisalberti, Mario, and Una Vincenzo Troubridge. Christopher Columbus: A Romance. Heinemann, 1949.

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