Cita APA (7a ed.)

Vayá, E., Lopez Bazo, E., & Artis, M. (1998). Growth, convergence and (why not?) regional externalities. ISTA Mielke GmbH.

Cita Chicago Style (17a ed.)

Vayá, Esther, Enrique Lopez Bazo, y Manuel Artis. Growth, Convergence and (why Not?) Regional Externalities. Hamburg: ISTA Mielke GmbH, 1998.

Cita MLA (9a ed.)

Vayá, Esther, et al. Growth, Convergence and (why Not?) Regional Externalities. ISTA Mielke GmbH, 1998.