Wanted: First Edition English books

We are searching for these books in hardcopy, or as a good scan, to research the text.

The Camel ... Not on the Roof

Path to Self Realisation

The Perennial Path: The Art of Living

Philosophy of Non-Violence

Seriousness

Yoga As a Spontaneous Happening (present as a PDF, not as a book)

What Is Meditation? (present as a PDF, not as a book)

If you know where to find any of these books, please contact Sugit.