Cita APA (7th ed.)

Gutnam, o., & Popenoe, D. (1963). Urban studies ; present trends and future prospects in an emerging academic field. s.n.

Cita Chicago (17th ed.)

Gutnam, obert, i David Popenoe. Urban Studies ; Present Trends and Future Prospects in an Emerging Academic Field. Princeton, N. J: s.n, 1963.

Cita MLA (9th ed.)

Gutnam, obert, i David Popenoe. Urban Studies ; Present Trends and Future Prospects in an Emerging Academic Field. s.n, 1963.