Photo by Erika Nizborski.
Sandra Marquardt
Founder and President
On the Mark Public Relations
Silver Spring, MD 20902
Phone: 301-512-4781
Email: smarquardt@onthemarkpr.com
LinkedIn: www.linkedin.com/in/sandramarquardt
Website: www.onthemarkpr.com
Twitter: @SandraMarquardt
Facebook: On the Mark PR
Skype: onthemarkpr