Ullman, E. L., Dacey, M. F., & Brodsky, H. (1969). The economic base of American cities: Profiles for the 101 metropolitan areas over 250,000 population based on minimum requirements for 1960. Univ. of Washington Press.
Chicago-Zitierstil (17. Ausg.)Ullman, Edward Louis, Michael F. Dacey, und Harold Brodsky. The Economic Base of American Cities: Profiles for the 101 Metropolitan Areas over 250,000 Population Based on Minimum Requirements for 1960. Seattle [u.a.]: Univ. of Washington Press, 1969.
MLA-Zitierstil (9. Ausg.)Ullman, Edward Louis, et al. The Economic Base of American Cities: Profiles for the 101 Metropolitan Areas over 250,000 Population Based on Minimum Requirements for 1960. Univ. of Washington Press, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.