Gilsinn, D.
and Sheppard, C.
(1978),
NBS minimal BASIC test programs - Version 1 user's manual ::Volume 3 - control statements, data structure, program input, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.IR.77-1420-3
(Accessed September 16, 2024)