APA
Biffignandi S. (., . (1999). Micro and macrodata of firms: Statistical analysis and inter. Heidelberg: Physica-Verlag.
Chicago
Biffignandi Silvia (ed), . 1999. Micro and macrodata of firms: Statistical analysis and inter. Heidelberg: Physica-Verlag.
Harvard
Biffignandi S. (., . (1999). Micro and macrodata of firms: Statistical analysis and inter. Heidelberg: Physica-Verlag.
MLA
Biffignandi Silvia (ed), . Micro and macrodata of firms: Statistical analysis and inter. Heidelberg: Physica-Verlag. 1999.