Cita APA (7th ed.)

Sichel, W., & Eckstein, P. (1977). Basic economic concepts. Rand McNally College Pub. Co..

Cita Chicago (17th ed.)

Sichel, Werner, i Peter Eckstein. Basic Economic Concepts. Chicago: Rand McNally College Pub. Co., 1977.

Cita MLA (8th ed.)

Sichel, Werner, i Peter Eckstein. Basic Economic Concepts. Rand McNally College Pub. Co., 1977.