ISBN 9780872594708 books & textbook
ARRL's Extra Class Q & A: All You Need to Pass Your Extra Class Exam!
Silver, Ward Wilson, Mark Weinberg, Maty Bloom, Michelle Morin, Jodi
ARRL, the national association for Amateur Radio /2012-06-25 Paperback
isbn-10: 087259470X / isbn-13: 9780872594708
