Portugal

Michelin Green Guide

Michelin

1978

Let's Go

Harvard Student Agencies

1986

Let's Go 2003

Let's Go, Inc.

2002

Insight Guide

Insight Guides

1991

Rivages

Fodor's

1995

Frommer's Comprehensive Travel Guide

Darwin Porter

1991

The Let's Go Series 1989

Harvard Student Agencies

1988

Portugal

Martin Symington

1997