| Wheatley, James | Grammar of Bakairí | 1964 | | Linguistics |
| Harrison, Carl H. | The Grammatical Structure of Asuriní | 1964 | | Linguistics |
| Kakumasu, James Y. | Phonemic Statement [Kaapor] | 1964 | | Linguistics |
| Perkins, Muriel | Syntax Analysis of Questions – Terêna | 1964 | | Linguistics |
| Koehn, Edward H.; Koehn, Sally S. | Notes on the Apalaí Language | 1964 | | Linguistics |
| Koehn, Edward H.; Koehn, Sally S. | Notas sobre a língua Apalaí | 1964 | | Linguistics |
| Meader, Robert E. | Karajá Grammar | 1964 | | Linguistics |
| Fortune, David L.; Fortune, Gretchen | Karajá Grammar | 1964 | | Linguistics |
