Revised report on the algorithmic language ALGOL 60
John Backus, Friedrich Ludwig Bauer, J. Green, Chaim Samuel Katz, John McCarthy, Alan J. Perlis, Heinz Rutishauser, Klaus Samelson, Bernard Vauquois, J. H. Wegstein, Adriaan J. van Wijngaarden, Michael Woodger · Communications of the ACM · 1963
Compound statements and blocks 4.2.Assignment statements 4.3.Go tu statements 4.4.Dummy statements 4.5.Conditional statements 4.6.For statements 4.7.Procedure statements 5.1.Type declarations 5.2.Array declarations 5.3.Switch declarntions 5.4.Procedure declarations 4.