CChemical conceptsChemical conceptsde Jay A. YoungMateriasChemistryProgrammed instructionEdiciones (2)Chemical concepts (1963)Prentice-Hall · inglésChemical concepts (1963)Prentice-HallMás obras de Jay A. YoungPPractice in thinkingPractice in thinkingImproving safety in the chemical laboratoryImproving safety in the chemical laboratory