Mind-bending Math Puzzles, Paperback by Regan, Lisa, Like New Used, Free ship…
Mind-bending Math Puzzles, Paperback by Regan, Lisa, ISBN 1725394464, ISBN-13 9781725394469, Like New Used, Free shipping in the US
Rosen Publishing Group
Effective Survival Strategies: Defeating Gangs in Your Neighborhood and Online
Effective Survival Strategies: Defeating Gangs in Your Neighborhood and Online, by Philip Wolny
Fulani (Cameroon, Mali, Nigeria) by Pat I. Nduwke (1996, Library Binding)
You will find that the illustrated diagrams explain things clearly.