ถ้าคุณชอบ An alien harvest

Linda Moulton Howe

นี่คือเล่มที่คุณควรอ่านต่อ

The day after Roswell

Philip J. Corso

Communion

Whitley Strieber

The Mothman Prophecies

John A. Keel

Area 51

Annie Jacobsen

Alien Agenda

Jim Marrs

Forbidden science

Jacques Vallee

Abduction

John E. Mack

UFOs

Leslie Kean

Choose Your Own Adventure - Project UFO

R. A. Montgomery

Glimpses of Other Realities

Linda Moulton Howe

Dimensions

Jacques Vallee

Hidden Truth

Steven M. Greer

UFOs and the National Security State

Richard M. Dolan

Roswell Incident

Charles Berlitz

The Interrupted Journey

John Grant Fuller