APA
Preker A. S., Scheffler R. M. & Bassett M. C. (2007). Private Voluntary Health Insurance in Development. Washington: International Bank For Reconstruction And Development.
Chicago
Preker Alexander S, Scheffler Richard M and Bassett Mark C. 2007. Private Voluntary Health Insurance in Development. Washington: International Bank For Reconstruction And Development.
Harvard
Preker A. S., Scheffler R. M. and Bassett M. C. (2007). Private Voluntary Health Insurance in Development. Washington: International Bank For Reconstruction And Development.
MLA
Preker Alexander S, Scheffler Richard M and Bassett Mark C. Private Voluntary Health Insurance in Development. Washington: International Bank For Reconstruction And Development. 2007.