Cita APA (7th ed.)

Seth, M. (1973). Principles of economics (9th.). Lakshmi narain A.

Cita Chicago (17th ed.)

Seth, M. Principles of Economics. 9th. NULL: Lakshmi narain A, 1973.

Cita MLA (9th ed.)

Seth, M. Principles of Economics. 9th. Lakshmi narain A, 1973.