APA Style

Symes, S. (2021). Britannica's first big book of why: why can't penguins fly? why do we brush our teeth? why does popcorn pop? the ultimate book of answers for kids who need to know why! . Kent, UK: Britannica Books.

MLA Style

Symes, Sally. "Britannica's first big book of why: why can't penguins fly? why do we brush our teeth? why does popcorn pop? the ultimate book of answers for kids who need to know why!". Kent, UK: Britannica Books, 2021. Text.