You can find the PDF version of Schaum's Outline of Programming with Fortran 77 online through various sources, such as:
According to the Amazon book overview and Google Books snippets , the text is organized as follows: Algorithm Development and Program Design Getting Started with Fortran 77 Input and Output Decision-Based Control Structures Subscripted Variables and Arrays Subprograms Character and Logical Data Data Files If you'd like, I can: Schaum--39-s Outline Of Programming With Fortran 77 Pdf
This article serves three purposes:
Do NOT download from random torrent sites. Many "Fortran 77 PDF" downloads are fake executables or bundleware. You can find the PDF version of Schaum's
Schaum’s Outlines (McGraw-Hill)