TY - RPRT TI - [Comparative study between aptitude profiles and efficiency. Studies done on 500 production line workmen and comparison between workmen with agricultural tradition and industrial tradition]. AU - F Federici AU - R Lenzi AU - F Angeleri PY - 1964 UR - https://pubmed.ncbi.nlm.nih.gov/5839975/ ID - 5839975 ER -