1. Average Monthly Waiting Times for Cessels at Brazilian Ports,2013
2. Associates;O'Brien,2021
3. Grain pricing and transportation: dynamics and changes in markets;Wilson;Agribusiness,2011
4. The World for Sale: Money, Power and the Traders Who Barter the Earth's Resources;Blas,2021
5. Various dates. Daily market report;PNW Secondary Rail Car Market Values from January 2013 to December,2019