Survey research.
SAPSFORD, Roger.
Survey research. - 2nd ed. - London : SAGE Publications, 2007. - 273p. ; cm.
Includes bibliographical references and index.
SOCIAL SCIENCES
SOCIAL SURVEYS.
Survey research. - 2nd ed. - London : SAGE Publications, 2007. - 273p. ; cm.
Includes bibliographical references and index.
SOCIAL SCIENCES
SOCIAL SURVEYS.