Wal - Zin

Walach Ph.D., Harald - Beyond a Materialist World View, 2019

Walton, Travis - The Walton Experience, 1978

Wolf, Michael - The Catchers of Heaven, 1996

Yogananda, Paramhansa - Autobiography of a Yogi, 1946

Zinsstag (& Timothy Good), Louise - George Adamski – The Untold Story, 1983

Zinsstag, Louise - George Adamski – Their Man on Earth, 1990