Hi. Although I live in Brazil, I´m an American translator, a native English speaker with excellent writing skills and years of translation experience. I have worked in the engineering area in the petroleum industry and in sanitation and hydrographic projects. I have lived or worked in several Spanish-speaking countries here in South America (including Argentina), and understand all the Spanish used in the Spectra text. Most of it has to do with a course in structural analysis and design software for using reinforced concrete. The site has about 1200 words in Spanish. I can translate this to perfect English in 3 days or less for $40 USD. Please contact me for further discussion. Thanks, David