46 researchers, 70% from the USA, 22% from copyright and 8% from other countries such as the Netherlands and Headset England, have collaborated to write a 515-page manual entitled Travel, Tourism, and Hospitaly Research: a handbook for mana- gers and researchers, published by John Wiley & Sons, New York, 1987 and Plein air - Femme - Chaussures - Soulier under the responsibility of two research editors, namely: J.R.Brent Ritchie of the University of Calgary (copyright) and Charles R.Goeldner of the University of Colorado.