Cita APA (7th ed.)
Urban, B. (2010). Frontiers in Entrepreneurship. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-04502-8
Cita Chicago (17th ed.)
Urban, Boris. Frontiers in Entrepreneurship. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. https://doi.org/10.1007/978-3-642-04502-8.
Cita MLA (9th ed.)
Urban, Boris. Frontiers in Entrepreneurship. Springer Berlin Heidelberg, 2010. https://doi.org/10.1007/978-3-642-04502-8.
Atenció: Aquestes cites poden no estar 100% correctes.