Ricky Ricotta's Mighty Robot vs. the Uranium Unicorns from Uranus
(Ricky Ricotta #7)
by Dav Pilkey and Dan Santat

• Publication Date: November 5, 2015
• Genres: Children's, Fiction
• Paperback: 128 pages
• Publisher: Scholastic
• ISBN-10: 1407143395
• ISBN-13: 9781407143392