APA Style

Stilton, T. (2018). Thea Stilton and the Riddle of the Ruins (Thea Stilton #28): A Geronimo Stilton Adventure . : Scholastic Paperbacks.

MLA Style

Stilton, Thea. "Thea Stilton and the Riddle of the Ruins (Thea Stilton #28): A Geronimo Stilton Adventure". : Scholastic Paperbacks, 2018. Printed Book.