TY  - BOOK
AU  - Halperin, Sandra
AU  - Heath Oliver
TI  - Political Research: methods and practical skills
SN  - 9780198820628
AV  - JA86 .H357 2020 
PY  - 2020///
CY  - New York, NY
PB  - Oxford University Press
KW  - Political research
N1  - Includes index
ER  -