When citing the PDF, always note the edition you are using (e.g., “1st ed., 1951, INAH, PDF scan from [source]”) and the page or “lámina” (plate) number.
When citing the PDF, always note the edition you are using (e.g., “1st ed., 1951, INAH, PDF scan from [source]”) and the page or “lámina” (plate) number.