Cita APA (7th ed.)
Spiegelglas, S., & Welsh, C. J. (1970). Economic development: Challenge and promise. Prentice-Hall.
Cita Chicago (17th ed.)
Spiegelglas, Stephen, i Charles J. Welsh. Economic Development: Challenge and Promise. Englewood Cliffs, N.J.: Prentice-Hall, 1970.
Cita MLA (9th ed.)
Spiegelglas, Stephen, i Charles J. Welsh. Economic Development: Challenge and Promise. Prentice-Hall, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.