APA (7th ed.) Citation

Millroy, J. J. (1904). Map and workings - Panama Canal. J.J. Millroy.

Chicago Style (17th ed.) Citation

Millroy, J. J. Map and Workings - Panama Canal. Washington, D.C.: J.J. Millroy, 1904.

MLA (9th ed.) Citation

Millroy, J. J. Map and Workings - Panama Canal. J.J. Millroy, 1904.