Article date: May 1967
Article title: Cube-root extraction and the calendar trick, or how to cheat in mathematics
Mathematical Games column? Y
Book: 7. Mathematical Carnival
Chapter: 7. Tricks of Lightning Calculators
This data confirmed? yes
Notes
Peter Rowlett (27 August 2022):
Peter Rowlett initial guess (Uncertain)
Peter Rowlett (29 October 2023):
I have seen this chapter and column side-by-side and they match.