@misc{indiciae4930385f856b, title = {Annotated bibliography of the analytical chemistry of niobium and tantalum, January 1935-June 1953}, author = {Frank Cuttitta}, year = {1957}, doi = {10.3133/b1029a}, url = {https://pubs.usgs.gov/publication/b1029A}, note = {Source identifier: b1029A} }