2 1 10 An Introduction To Computer Science I David D. Riley Primary Author mixed material 087835235X Boston Boyd & Fraser Publishing Company 1987 cover_intructor-s-manual-to-accompany-using-pascal-an-introduction-to-c-20240429132416.jpg An Introduction To Computer Science I David D. Riley Primary Author mixed material 0878352341 Boston Boyd & Fraser Publishing Company 1987 cover_using-pascal-an-introduction-to-computer-science-i-20231228100158.jpg