APA (7th ed.) Citation

Gladstone, J., & Diemert, K. (2017). When planet Earth was new. Owlkids Books Inc.

Chicago Style (17th ed.) Citation

Gladstone, James, and Katherine Diemert. When Planet Earth Was New. Toronto, ON ; Berkeley, CA: Owlkids Books Inc, 2017.

MLA (8th ed.) Citation

Gladstone, James, and Katherine Diemert. When Planet Earth Was New. Owlkids Books Inc, 2017.

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