1. American Association of Port Authorities. (2015). Post Surface Transportation Infrastructure Survey: The State of Freight. Retrieved from http://aapa.files.cmsplus.com/StateofFreight_Report_final.pdf
2. American Association of Port Authorities. (2018). The State of Freight III. Retrieved from http://aapa.files.cms-plus.com/PDFs/State%20of%20Freight%20III.pdf
3. American Association of Port Authorities and the U.S. Maritime Administration (MARAD). (2017). Port Planning and Investment Toolkit. Retrieved from http://aapa.files.cms-plus.com/PDFs/Toolkit/Introduction%20and%20Users%20Guide.pdf
4. Brooks, M. R., & Pallis, A. A. (2012). Port governance. In W. K. Talley (Ed.), The Blackwell companion to maritime economics. Blackwell Publishing Ltd.
5. Committee on the Marine Transportation System (CMTS). (2017). Federal Funding Handbook for Marine Transportation System Infrastructure. Retrieved from https://www.cmts.gov/downloads/2017_CMTS_Federal_Funding_Handbook_for_MTS_Infrastructure.pdf