APA (7th ed.) Citation

DeCristofano, C. C., & Carroll, M. H. (2011). A black hole is not a hole. Charlesbridge.

Chicago Style (17th ed.) Citation

DeCristofano, Carolyn Cinami, and Michael Henry Carroll. A Black Hole Is Not a Hole. Watertown, MA: Charlesbridge, 2011.

MLA (9th ed.) Citation

DeCristofano, Carolyn Cinami, and Michael Henry Carroll. A Black Hole Is Not a Hole. Charlesbridge, 2011.