Mustapa, Margit - Book of Brothers, 1963

Mustapa, Margit - Spaceship to the Unknown, 1960

Nelson, Buck - My Trip to Mars, the Moon and Venus, 1956

Nikhilananda, Swami - The Gospel of Sri Ramakrishna, 1942

Omananda Puri, Swami - The Boy And The Brothers, 1959

Omananda Puri, Swami - Towards the Mysteries, 1968