Cita APA (7th ed.)

SILVERMAN, H. (1965). Substance of economics: For the student and the general reader. Pitman & Sons.

Cita Chicago (17th ed.)

SILVERMAN, H.A. Substance of Economics: For the Student and the General Reader. London: Pitman & Sons, 1965.

Cita MLA (9th ed.)

SILVERMAN, H.A. Substance of Economics: For the Student and the General Reader. Pitman & Sons, 1965.