Não informado. (1957). Summary of engineering research. University of Illinois, Engineering Experiment Station.
Citação do estilo Chicago (17ª ed.)Não informado. Summary of Engineering Research. Urbana, Ill: University of Illinois, Engineering Experiment Station, 1957.
Citação MLA (8ª ed.)Não informado. Summary of Engineering Research. University of Illinois, Engineering Experiment Station, 1957.
警告：這些引文格式不一定是100％准確.
