| Type | Book |
| Title | Etnologia del istmo veracruzano |
| Author(s) | |
| Volume | 50 |
| Publication (Day/Month/Year) | 1983 |
| Publisher | Unam |
| URL | https://books.google.md/books?hl=ru&lr;=&id=NdWaU0Sd6nIC&oi=fnd&pg=PA7&dq;="Censo+General+de+Población+1970"+mexico&ots=BS_0UOp3Xj&sig=zQhRNplx_-JqO7Pd3nVGHu0ZgfY&redir_esc=y#v=onepage&q="CensoGeneral de Población 1970" mexico&f=false |
| » | Mexico - Censo General de Población 1970 |