Issue No.05 - May (1974 vol.23)
P. Freeman , Inform. Comput. Sci. Dep. Univ. California
This book consists of three self-pacing programmed instruction courses: Introduction to Computer Systems and Programming Languages, Fortran, and Algol. The courses consist of brief (typically, 1 page) instructional exposition followed by questions and answers (1 frame). The introductory unit is 21 pages (25 frames) long and assumes no particular background on the part of the reader.
P. Freeman, "B 74-34 Fortran and Algol:A Programmed Course for Students of Science and Technology", IEEE Transactions on Computers, vol.23, no. 5, pp. 559-560, May 1974, doi:10.1109/T-C.1974.223990