1.		A report on growth and profitability in the superjet age the 3rd two-way transatlantic travel congress / European Travel Commission Data Publicação: 1969 Col.autor: European Travel Commission COTA(S): 211; 211.a
2.		Europe's lively months travel agentes manual / European Travel Commission Data Publicação: 1972 Col.autor: European Travel Commission COTA(S): 217