APA (7th ed.) Citation

Frechtling, D. C. (1977). Travel as an employer in the state economy. U.S. Travel Data Center.

Chicago Style (17th ed.) Citation

Frechtling, Douglas C. Travel as an Employer in the State Economy. Washington, DC: U.S. Travel Data Center, 1977.

MLA (9th ed.) Citation

Frechtling, Douglas C. Travel as an Employer in the State Economy. U.S. Travel Data Center, 1977.