TY - BOOK AU - Morgan, Mary S (ed) AU - Morrison, Margaret (ed) TI - Models as mediators: Perspectives on natural and social scie T2 - Ideas in context SN - 0-521-65571-4 U1 - 510/MOR PY - 1999/// CY - Cambridge PB - Cambridge Uni Pr KW - Physics-Mathematical models KW - Science-Mathematical models KW - Mathematics ER -