(2011). 2011 aerial photos Linn State Technical College. [computer files].
Cita Chicago (17th ed.)2011 Aerial Photos Linn State Technical College. [computer Files]. 2011.
Cita MLA (9th ed.)2011 Aerial Photos Linn State Technical College. [computer Files]. 2011.
Atenció: Aquestes cites poden no estar 100% correctes.