@phdthesis{ Solr-1502922630, title = {The thin green line: a socio-historical analysis of conservation law enforcement in the United States}, author = {Marks, John M.}, year = {2013}, school = {Huntsville, Tex., Sam Houston State Univ., Diss., 2013}, url = {https://swbplus.bsz-bw.de/bsz432922636inh.htm} }