Research methods in the social sciences
Frankfort-Nachmias Chava, Nachmias David, DeWaard JackKniha
Citace v seznamu literatury:
FRANKFORT-NACHMIAS, Chava; NACHMIAS, David a DEWAARD, Jack. Research methods in the social sciences. Eighth edition. New York: Worth Publishers, a Macmillan Education Company, [2015]. ISBN 9781429233002.