I can remember hearing this song sung by John Barker (deceased)of "The Crayfolk" who were the residents at Dartford Folk Club - I'm pretty sure that it was pre-1970.

The "Skiving" parody is by Dave Diamond who was working (for the US government) over here in the UK for quite some time during the late 70's. There are quite a few of his lyrics in the DT - they're worth searching out.

What are the joys of the single young girl - why boozing . . .
And what gets her head in one helluva whirl - why boozing . . .
She starts off on tonic, then to lager gets lead,
She winds up on vodka - right out of her head,
And wakes up next morning in some strange fella's bed - from boozing . . .