Principle of Avionic

Bobby , why don't you order this book on Amazon it is only $60.00

Original Price is $120.00

http://books.google.com/books?id=0BI6ioB8kM8C&pg=PA346&lpg=PA346&dq=avionic+o+strand+%26+I+strand&source=bl&ots=scKO2w2sIe&sig=LTA_LFkS4bym3vYQtMk6qQfP1MM&hl=en&sa=X&ei=U78yU5f6EunQsQSAqoHwAw&ved=0CD8Q6AEwBDgU#v=onepage&q=avionic%20o%20strand%20%26%20I%20strand&f=false

http://www.amazon.com/Principles-Avionics-Edition-Albert-Helfrick/dp/1885544324/ref=sr_1_1?ie=UTF8&qid=1395835247&sr=8-1&keywords=principle+of+avionic+book