The previous page is sending you to https://www.thriftbooks.com/w/fortran-90-language-guide_wilhelm-gehrke/912222/item/10671877/?isbn=3540199268&idiq=10671877&srsltid=AfmBOoqDzrygjzXICncbKZImy7lq7JZqcAUWeA7iKa6igcX2IkryZGbNTlw.

 If you do not want to visit that page, you can return to the previous page.