APA (7th ed.) Citation

Maurel, A., & Gerard, H. (1921). A fortnight in Naples. G. P. Putnam's sons.

Chicago Style (17th ed.) Citation

Maurel, Andre, and Helen Gerard. A Fortnight in Naples. New York: G. P. Putnam's sons, 1921.

MLA (9th ed.) Citation

Maurel, Andre, and Helen Gerard. A Fortnight in Naples. G. P. Putnam's sons, 1921.