Cita APA (7a ed.)

Richardson, H. W. (1971). Urban economics (1st published.). Penguin Books.

Cita Chicago Style (17a ed.)

Richardson, Harry Ward. Urban Economics. 1st published. Harmondsworth [etc.]: Penguin Books, 1971.

Cita MLA (9a ed.)

Richardson, Harry Ward. Urban Economics. 1st published. Penguin Books, 1971.