Danish

 Berlitz Language Danish for your trip

Colloquial Danish

Complete Danish (Learn Danish with Teach Yourself)

Danish A Comprehensive Grammar

Danish An Essential Grammar

Danish Berlitz Phrasebook

Danish EBOOK An Essential Grammar

Danish Learn to Speak and Understand Danish with Pimsleur Language Programs

Danish Phrase Book & Dictionary Berlitz

Dansk I Dag

Say It in Danish

Finnish

Complete Finnish (Learn Finnish with Teach Yourself)

Finnish an essential grammar

Icelandic

Beginner’s Icelandic

Colloquial Icelandic

Complete Icelandic

Norwegian

Beginner’s Norwegian

Colloquial Norwegian

Complete Norwegian (Learn Norwegian with Teach Yourself)

Pimsleur Basic Norwegian [With Free Cd Case]

Pimsleur Conversational Norwegian

Workbook for Norsk, Nordmenn Og Norge 1

Swedish

Complete Swedish (Learn Swedish with Teach Yourself)

Essential Swedish Grammar

Get Started in Beginner’s Swedish

Swedish a Comprehensive Grammar