Vesolje /

od Williams, Brian, 1943-
Izdano 2014

The Random House book of 1001 questions and answers about planet Earth /

od Williams, Brian, 1943-, Williams, Brenda.
Izdano 1993

Enciklopedija : vprašanja in odgovori /

od Parker, Steve, 1952-, Williams, Brian, 1943-
Izdano 2006