00421nam a2200157Ia 4500001001100000005001700011008004300028020002300071020002600094245003800120260003600158300001600194650001800210650002000228999001500248000000712920251012174457.0  050503s1971    enk           000 0 eng d  a0043301983 (cased)  a9780043301982 (cased)10aDemand and supplycRalph Turvey.   aLondonbAllen and Unwinc1971.   a127 Sbill. 7aAngebot.2swd 7aNachfrage.2swd  c4345d4345