A Comprehensive Welsh Grammar (Reference Grammars) by Thorne, David A.

Intermediate Welsh: A Grammar and Workbo... by King, Gareth Paperback / softback

Dutch: A Comprehensive Grammar (Routledge Compr... by Donaldson, Bruce Paperback

Basic Welsh: A Grammar and Workbook (Grammar Workbo... by King, Gareth Paperback

Comprehensive Welsh Grammar

A Comprehensive French Grammar (Blac... by Price, Glanville Paperback / softback

Greek: An Essential Grammar of the Mode... by Holton, David Paperback / softback