Ziegler - Messiah's Inventions - New paperback or softback - X555z

Dircks - Inventors and inventions. - New paperback or softback - X555z

World Book - True or False Inventions - New paperback or softback - X555z

Sattar - Kids' Inventions Journl - New paperback or softback - X555z

Mowry - American Inventions And Inventors - New paperback or softback - X555z

Zlovic - Ridiculous Inventions - New paperback or softback - X555z

Chapin co. - Patents For Inventions! - New paperback or softback - X555z

Carroll - Inventions from the Stone Age - New paperback or softback - X555z