TY - BOOK AU - Shackelford, Jole A2 - American Philosophical Society PY - 2013 DA - 2013// TI - Northern light and northern times: Swedish leadership in the foundation of biological rhythms research T3 - Transactions of the American Philosophical Society 103,2 PB - American Philosophical Society CY - Philadelphia KW - Biological rhythms KW - Research KW - Sweden KW - History KW - 20th century SN - 9781606180327 LA - English N1 - Jole Shackelford ID - 771424493 ER -