APA
Mattera A., . (1999). Community action on public procurement: the plan of action adopted by the European Commission. : .
Chicago
Mattera A, . 1999. Community action on public procurement: the plan of action adopted by the European Commission. : .
Harvard
Mattera A., . (1999). Community action on public procurement: the plan of action adopted by the European Commission. : .
MLA
Mattera A, . Community action on public procurement: the plan of action adopted by the European Commission. : . 1999.
