Cita APA (7th ed.)

(1975). Regional science: New concepts and old problems. Pion.

Cita Chicago (17th ed.)

Regional Science: New Concepts and Old Problems. London: Pion, 1975.

Cita MLA (9th ed.)

Regional Science: New Concepts and Old Problems. Pion, 1975.

Atenció: Aquestes cites poden no estar 100% correctes.