00434nam a22001697a 450000100060000000300100000600500170001604000140003300800410004702000180008810000330010624500450013925000060018426000450019030000110023565000180024631581MX-SIABUC20260702210527.0 aMX-SIABUC050523s1970 -us# j emg d a0-393-09190-2 aMansfield, Edwin, 1930-1997. aMicroeconomics: theory and applications. a2 aNew Yprk :bW. W. Norton & Company, Inc. a381 p. a1. ECONOMÍA