LEADER 00000nam 2200181 a 4500 001 0370892 003 UkHlHU 007 t 008 000608 1 1965 000 eng 040 UkHlHU 050 4 QA 10.3 B7 100 0 Bowran, Alfred Percy. 245 02 A boolean algebra, abstract and concrete. 260 London :|bMacmillan,|c1965. 300 93p. 946 6XX absent
