Cita APA (7a ed.)

Cole, G. D. H. (1938). Practical economics or Studies in economic planning (1st published, repr. october 1938.). Penguin Books.

Cita Chicago Style (17a ed.)

Cole, G. D. H. Practical Economics or Studies in Economic Planning. 1st published, repr. october 1938. Harmondsworth: Penguin Books, 1938.

Cita MLA (9a ed.)

Cole, G. D. H. Practical Economics or Studies in Economic Planning. 1st published, repr. october 1938. Penguin Books, 1938.