1. Beamed Energy Propulsion 1230: 6Th International Symposium: Scottsdale Arizona 15 November 2009
by Phipps C. 
Price: USD 270.20
Dealer: Biblio, indianaabooks
Description: Very Good. ISBN 0735407746 9780735407749 [US] 

2. Beamed Energy Propulsion 1230: 6th International Symposium: Scottsdale Arizona, 1–5 November 2009
by American Institute Of Physics 
Price: USD 287.42
Dealer: Alibris, Books International via Alibris
Description: American Institute of Physics 2010 2010 ed. Hard cover New