APA (7th ed.) Citation

Kevin Henkes. (2013). Penny and Her Marble (I Can Read Level 1). Greenwillow Books.

Chicago Style (17th ed.) Citation

Kevin Henkes. Penny and Her Marble (I Can Read Level 1). Greenwillow Books, 2013.

MLA (9th ed.) Citation

Kevin Henkes. Penny and Her Marble (I Can Read Level 1). Greenwillow Books, 2013.

Warning: These citations may not always be 100% accurate.