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BLSDBasic Life Support Defibrillation
BLSDBorder Land School Division (Canada)
BLSDBuckeye Local School District (Medina, OH)
BLSDBiomedical and Life Sciences Division (Special Libraries Association)
BLSDBoulders and Sand (lithological term)
BLSDBatavia Local School District (Batavia, OH)
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References in periodicals archive ?
For example, rock always co-occurred with boulders and sand, forming complex high-relief outcrops in shallower water (i.e., <100 m).