Hanns Kurth. Bioritmiek : barometer van uw energie.

Karel Glastra van Loon . Ongeneeslijk optimistisch.

J. Sleigh. Thirteen to nineteen - Discovering the light. Conversations with parents.

Stadler, Alexander. Beverly Billingsly Borrows a Book.

Jo. Heinr. Kurtz. Handbuch der allgemeinen Kirchengeschichte. Band I.