APA (7th ed.) Citation

United States Travel Data Center. (1977). 1976 national travel expenditure study: Summary report. The Center.

Chicago Style (17th ed.) Citation

United States Travel Data Center. 1976 National Travel Expenditure Study: Summary Report. Washington, D.C.: The Center, 1977.

MLA (9th ed.) Citation

United States Travel Data Center. 1976 National Travel Expenditure Study: Summary Report. The Center, 1977.

Warning: These citations may not always be 100% accurate.