Kirjat (4):

• James fenimore cooper's landscapes in the leather-stocking series and other forest tales / Kaarle-juhani (nalle) Valtiala - [Helsinki] : Academia Scientiarum Fennica, 1998
• Notvarp i sargassohavet / Nalle Valtiala - [Helsingfors] : Söderström, 1972
• Res västerut, unge man! : essayer / Nalle Valtiala - [Helsingfors] : Söderström, 1978
• Susan fenimore cooper / Nalle Valtiala - [Mariehamn] : PQR-kultur, 2009