Cita APA (7a ed.)

Santos, M. I., & Serrano, J. The informal sector: Focus on four vending areas.

Cita Chicago Style (17a ed.)

Santos, Ma. Imelda, y Jonathan Serrano. The Informal Sector: Focus on Four Vending Areas.

Cita MLA (9a ed.)

Santos, Ma. Imelda, y Jonathan Serrano. The Informal Sector: Focus on Four Vending Areas.