A Venezuelan model of codetermination Jimenez, Ricardo Fertilizers Forest soils--Fertilization Sewage sludge as fertilizer Thesis (M.S.)--Michigan State University. Department of Labor and Industrial Relations, 1983 Includes bibliographical references (pages 172-182) 1983 Text Theses 2, iii, 182 pages application/pdf etd:39788 local:MSU_31293030470318 https://doi.org/doi:10.25335/70q1-7z67 English Electronic Theses & Dissertations Venezuela In Copyright