Cita APA (7a ed.)
Judson, L. S. V. (1951). Letïs go to Peru. Harper.
Cita Chicago Style (17a ed.)
Judson, Lyman Spicer V. Letïs Go to Peru. New York: Harper, 1951.
Cita MLA (9a ed.)
Judson, Lyman Spicer V. Letïs Go to Peru. Harper, 1951.
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