Source: https://www.cambridge.org/core/services/aop-cambridge-core/content/view/260DDCEAFA1F2F610A73922E82387D79/S0959269500002404a.pdf/div-class-title-g-price-span-class-italic-l-s-r-byme-and-e-l-churchill-s-a-comprehensive-french-grammar-span-oxford-blackwell-fourth-edition-1993-584-pp-0-631-18165-2-div.pdf