وسلامة زراعية "Machine Safety". NIOSH Workplace SafetyandHealth Topics. National Institute of Occupational SafetyandHealth. مؤرشف من الأصل في 2018-06-26
2018-05-07. LaboratorySafety Monograph: A Supplement to the NIH Guidelines for Recombinant DNA Research. Department of Health, Education, and Welfare, Public