APA Style

Slade, S., Schwartz, C. (2011). What if there were no bees? : a book about the grassland ecosystem . North Mankato, USA: Picture Window Books.

MLA Style

Slade, Suzanne., Schwartz, Carol. "What if there were no bees? : a book about the grassland ecosystem". North Mankato, USA: Picture Window Books, 2011. Text.