Styl cytowania APA

Halm, G. N. (1968). Economic systems: A comparative analysis. Oxford & IBH.

Styl cytowania Chicago

Halm, George N. Economic Systems: A Comparative Analysis. New Delhi: Oxford & IBH, 1968.

Styl cytowania MLA

Halm, George N. Economic Systems: A Comparative Analysis. Oxford & IBH, 1968.