00782cam a22002651 4500 2652421 BD-DhUL 20150117162312.0 690303s1969 nyua b 001 0 eng 69012897 0471696501 DLC DLC DLC BD-DhUL TK5103.6 .P7 621.38 PRL Pratt, William K. Laser communication systems / William K. Pratt. New York : J. Wiley c1969. xi, 271 p. : ill. ; 23 cm. IRS 201.21 Wiley series in pure and applied optics Includes bibliographical references. Laser communication systems. 7 cbc orignew u ncip 19 y-gencatlg ddc BK 32212 32212 0 0 ddc 0 621_380000000000000_PRL 0 NFIC 60641 DUSL DUSL GEN 1977-09-27 Purchased 621.38 PRL A150729 2015-01-17 2015-01-17 BK