The Riddle-o-pedia : 2022 different riddles, cross-referenced under 1165 subject-headings, an entertaining Ecyclopedia of riddles for all ages, also featuring a guide reference rear index of riddle subjects /
compiled and presented by Cheryl Threadgold.
- Victoria : Storiesman's Word Works, c1991.
- xi, 265 pages: illustrations ; 22 cm.