diff --git a/Chinampas_area/SciAm-1964-Chinampas.pdf b/Chinampas_area/SciAm-1964-Chinampas.pdf
new file mode 100644
index 0000000..2c8f941
Binary files /dev/null and b/Chinampas_area/SciAm-1964-Chinampas.pdf differ