Validity in survey research with special reference to the techniques of intensive interviewing and progressive modification for testing and constructing difficult or sensitive measures for use in survey research

Xehetasun bibliografikoak
Egile nagusia: Belson, William A.
Formatua: Liburua
Hizkuntza:English
Argitaratua: Aldershot, Hants, Eng. c1986
Gaiak: