APA (7th ed.) Citation

(2018). The State of Positive Train Control Implementation in the United States. ProQuest.

Chicago Style (17th ed.) Citation

The State of Positive Train Control Implementation in the United States. Bethesda, Md.: ProQuest, 2018.

MLA (9th ed.) Citation

The State of Positive Train Control Implementation in the United States. ProQuest, 2018.

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