APA-Zitierstil (7. Ausg.)

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

Chicago-Zitierstil (17. Ausg.)

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

MLA-Zitierstil (9. Ausg.)

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