Guinle, R. L. (1938). A modern Spanish-English & English-Spanish technical & engineering dictionary: Containing all the words used in civil, mechanical and electrical engineering ; also many on aviation, wireless, architecture, railways, automobiles, shipbuilding, marine, chemistry, physics, mathematics, geology, mining, metallurgy, geography, surveying, commerce, agriculture, textile machinery, machine-tools, etc., etc. Suitable for Spain and all the Spanish-speaking countries of Central America and South America. G. Routledge & Sons, Ltd..

Guinle, R. L. A Modern Spanish-English & English-Spanish Technical & Engineering Dictionary: Containing All the Words Used in Civil, Mechanical and Electrical Engineering ; Also Many on Aviation, Wireless, Architecture, Railways, Automobiles, Shipbuilding, Marine, Chemistry, Physics, Mathematics, Geology, Mining, Metallurgy, Geography, Surveying, Commerce, Agriculture, Textile Machinery, Machine-tools, Etc., Etc. Suitable for Spain and All the Spanish-speaking Countries of Central America and South America. G. Routledge & Sons, Ltd., 1938.