John Gray (2012). “Men Are from Mars, Women Are from Venus: A Practical Guide for Improving Communication and Getting What You Want in Your Relationships”, p.11, HarperCollins UK
John Gray (2012). “Men Are from Mars, Women Are from Venus: A Practical Guide for Improving Communication and Getting What You Want in Your Relationships”, p.10, HarperCollins UK
John Gray (2012). “Men Are from Mars, Women Are from Venus: A Practical Guide for Improving Communication and Getting What You Want in Your Relationships”, p.19, HarperCollins UK