TY  - BOOK
AU  - Trochim,William M.K.
AU  - Donnelly,James P.
TI  - Research methods knowledge base
SN  - 9781592602902
AV  - H62.T7 2008 
PY  - 2008///
CY  - Mason,Ohio
PB  - Atomic Dog/Cengage learning
KW  - Research methods{Social sciences}
ER  -