APA (7th ed.) Citation

Pennell, J. (1913). The wonder of work on the Panama Canal. Offices of the International Studio.

Chicago Style (17th ed.) Citation

Pennell, Joseph. The Wonder of Work on the Panama Canal. New York: Offices of the International Studio, 1913.

MLA (9th ed.) Citation

Pennell, Joseph. The Wonder of Work on the Panama Canal. Offices of the International Studio, 1913.

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