2020-02-282020-02-28n.d.https://repository.tcu.edu/handle/116099117/37874Summary of Economic Information of Argentina, Uruguay, Brazil, and Trinidad from the US Department of Commerce.9.5x11.5 paperPrior written permission from TCU Special Collections required to use any document or photographAviationPan American World Airways (Pan Am)Air travelClipper flightsDocument