Cita APA (7a ed.)
Udall, S. L. 1976: Agenda for Tomorrow. Harcourt, Brace and World.
Cita estilo Chicago (17a ed.)
Udall, Stewart L. 1976: Agenda for Tomorrow. Nueva York, EUA: Harcourt, Brace and World.
Cita MLA (9a ed.)
Udall, Stewart L. 1976: Agenda for Tomorrow. Harcourt, Brace and World.
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