Outojen otusten jäljillä: Tutkimusretkiä lumimiesten, vesihirviöiden ja muiden merkillisten olentojen maailmaanPäivi Laitinen3.8
The Girl Explorers: The Untold Story of the Globetrotting Women Who Trekked, Flew, and Fought Their Way Around the World: The Untold Story of the Globetrotting Women Who Trekked, Flew, and Fought Their Way Around the WorldJayne Zanglein4
From Outer Space to Inner Space: An Apollo Astronaut's Journey Through the Material and Mystical WorldsDr. Edgar Mitchell5