APA (7th ed.) Citation

Marshall, R. B. Proceedings of the second Pan American scientific congress: Engineering work of the United States Geological Survey.

Chicago Style (17th ed.) Citation

Marshall, R. B. Proceedings of the Second Pan American Scientific Congress: Engineering Work of the United States Geological Survey.

MLA (9th ed.) Citation

Marshall, R. B. Proceedings of the Second Pan American Scientific Congress: Engineering Work of the United States Geological Survey.

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