11.		The US business and conference travel market / Helga Loverseed Autor: Loverseed, Helga
12.		Trends in business tourism management / Fred R. Lawson Autor: Lawson, Fred R.
13.		Become your own marketing information consultant / Sherry Dean Autor: Dean, Sherry
14.		Market segments : the european conference and meetings market / Gregory Rockett, Gill Smillie Autor: Rockett, Gregory Coautor: ; Smillie, Gill
15.		International business travel : a new megamarket / by Robert Cleverdon Autor: Cleverdon, Robert Data Publicação: 1985 Co col. autor sec.: EIU
16.		International business travel 1988 / by Robert Cleverdon & Kevin O'Brien Autor: Cleverdon, Robert Data Publicação: 1988 Coautor: O Brien, Kevin Co col. autor sec.: EIU
17.		Tourisme d'affaires et de congrès dans l'espace economique européen : rapport preliminaire / Horwath France Data Publicação: 1995 Col.autor: Horwath France
18.		Market segments : the european conference and meetings market / Gregory Rockett and Gill Smillie Autor: Rockett, Gregory Data Publicação: 1994 Coautor: Smillie, Gill Co col. autor sec.: EIU
19.		Intervenção / Joaquim Vasconcelos da Ponte Autor: Ponte, Joaquim Vasconcelos da
20.		1976 national travel expenditure study: summary report / United States Travel Data Center Data Publicação: 1977 Col.autor: U.S. Travel Data Center