00585nam a2200181Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 1-85233-558-0 IIA Library 524.38 OBS Observing and measuring visual double stars edited by Bob Argyle London Springer-Verlag 2004 xii, 326p. Patrick Moore's practical astronomy series Double stars-observer's manual 29644 Argyle, Bob., ed. 29645 BK 16032 16032 0 0 0 0 BAN BAN GEN 2005-12-19 PBPL 2281.15 0 524.38/ OBS 16954 2021-11-05 2281.15 2005-12-19 BK Rs. 2281.15