320.072 JOH /1/4/1
Johnson J. B., Reynolds N. T., Jostyn R. A., ;
Political Science Research Methods / Janet Buttolph Johnson, H. T. Reynolds, Jason D. Mycoff. — Washington : CQ Press, ©2001. — XX p. + 492 p.. — ISBN 1-56802-329-4
ДКД 320.072
ДКД 320.072