Police association power, politics, and confrontation : a guide for the successful police labor leader /

por Burpo, John H., Burpo, John H., DeLord, Ron, Shannon, Michael R.
Publicado 1997

Police union power, politics, and confrontation in the 21st century : new challenges, new issues /

por DeLord, Ron, DeLord, Ron, Burpo, John H., Shannon, Michael R., Spearing, Jim
Publicado 2008