Παραπομπή APA

Sundharam, K., & Vaish, M. (1970). Principles of economics. Rajan prakashan mandir.

Παραπομπή Chicago Style

Sundharam, K.P.M, και M.C Vaish. Principles of Economics. Agra: Rajan prakashan mandir, 1970.

Παραπομπή MLA

Sundharam, K.P.M, και M.C Vaish. Principles of Economics. Rajan prakashan mandir, 1970.