Book (2018) - F.W. Guldenmund (author), Frank Guldenmund (author), Frank W. Guldenmund (author), FW Guldenmund (author), Birgitte Blatter (author), Victor Roggeveen (author), Frank Leoné (author), Frank van Luijk (author), Herman de Bruine (author), Jan Treffers (author), Job Groeneweg (author), Maartje Bakhuys Roozeboom (author), Marius Rietdijk (author), Tamara Wolsak (author)