Merritt, R. L. (1970). Systematic approaches to comparative politics. Rand McNally & Co..
Chicago-čujuhus (17. p.)Merritt, Richard L. Systematic Approaches to Comparative Politics. Chicago: Rand McNally & Co., 1970.
MLA-čujuhus (9. p.)Merritt, Richard L. Systematic Approaches to Comparative Politics. Rand McNally & Co., 1970.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.