00358nam a2200157Ia 45000010006000000050017000060080041000230410008000640820015000721000026000872450031001132600009001443000031001536500008001846540008001921470220260306164933.0260306t1990||||xx |||||||||||||| ||spa|| aESP a515.9bL54 aLevinson, NormaneAUT 0aCurso de variable compleja c1990 axv, 429 páginas :c21cm. aGEN aCMA