Richards,, Laurence D.
Constraint theory : an approach to policy-level modelling / Laurence D. Richards
Constraint theory : an approach to policy-level modelling / Laurence D. Richards
. - Lanham : University Press of America, cop. 1983
. - XX, 404 p. 22 cm
0-8191-3513-5 (Brochado)
658.0