Feigl, Fritz, 1891-1971, Spot tests in organic analysis / By fritz feigl, in collaboration with vinzenz anger. translated by Ralph e. oesper. - 7 # rev. - 772 páginas Subjects--Topical Terms: Pruebas a la gota (Química)Química analítica--Cuantitativa LC Class. No.: QD81 / F4351966