[et.al], N. N. (2019). Science Is Fun. Muffin Graphics.
Chicago Style (17th ed.) Citation[et.al], Nadine Naurra. Science Is Fun. Muffin Graphics, 2019.
MLA (8th ed.) Citation[et.al], Nadine Naurra. Science Is Fun. Muffin Graphics, 2019.
Warning: These citations may not always be 100% accurate.