The an introduction to qualitative and quantitative methods Gray, Paul S. Williamson, John B. David A. Karp John R. Dalphin creator text New York Cambridge University Press 2007 monographic xxii, 456 p. : ill. ; 25 cm. Includes appendix and index Social sciences Research Social surveys Social surveys--Methodology Social sciences--Methodology Research--Methodology FSSH 001.4 THE 9780521705554 (pbk.)