Title
A chalkboard with mathematic symbols on it
Caption
A chalkboard with mathematic symbols on it. Photographer: Jamie Grill
Date
Jul 2009
Credit line
Photo12/Tetra Images
Reference
TTM09A13_076
Model release
No
License type
Royalty free
Available size
50,0Mb (2,8Mb) / 12,1in x 16,0in / 3632 x 4809 (300dpi)