By Hafner John   Hafner Patti   in International Journal of Science Education

ISSN:1464-5289|25|12|1509-1528

Routledge Ltd‎(2003)‎

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By Craig Matthew T.   Pondella Daniel J.   Hafner John C.   in Bulletin of Marine Science

ISSN:0007-4977|65|3|807-814

University of Miami - Rosenstiel School of Marine and Atmospheric Science‎(1999)‎

Access to resources Favorite 6.9313517

By Hafner John William   Downs Michael   Cox Kelly   Johncox Joy E.   Schaefer Timothy J.   in Prehospital Emergency Care

ISSN:1090-3127|16|4|434-442

Informa Healthcare‎(2012)‎

Access to resources Favorite 6.1613283