APA (7th ed.) Citation

Boothroyd, J. (2011). How big? how heavy? how dense?: A look at matter.

Chicago Style (17th ed.) Citation

Boothroyd, Jennifer. How Big? How Heavy? How Dense?: A Look at Matter. 2011.

MLA (8th ed.) Citation

Boothroyd, Jennifer. How Big? How Heavy? How Dense?: A Look at Matter. 2011.

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