Cita APA

Williams, R. G. Export agriculture and the crisis in Central America. Robert G. Williams. U.S.A: UNCP.

Citación estilo Chicago

Williams, Robert G. Export Agriculture and the Crisis in Central America. Robert G. Williams. U.S.A: UNCP.

Cita MLA

Williams, Robert G. Export Agriculture and the Crisis in Central America. Robert G. Williams. U.S.A: UNCP.