00516nam a2200193Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 471-69650-1 IIA Library 535.125.2 PRA Pratt, William K 5851 Laser communication systems William K. Pratt New York Wiley 1969 xi, 271p. Wiley series in pure and applied optics Lasers 3580 NASA Thesaurus BK 3288 3288 0 0 0 0 BAN BAN GEN 1969-09-23 100.91 0 535.125.2/ PRA 3652 2021-11-05 100.91 1969-09-23 BK Rs. 100.91