| title | ISBN-13 (ISBN-10)  | year of publication | 
|---|---|---|
| Leonardo Michelangelo Donatello Raphael: Monthly Calendar 2020, Planer, 24 pages, 6x9", ruled, with an extra page for notices each month | 978-1-6985-3368-1 (1-6985-3368-3)  | 2019 | 
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