Without wearing out my fingers googling and counting variants, it would surprise me not if Child #4, Lady Isabel and the Elf and/or Outlandish Knight aka Bluebeard had one of the widest circulations.

Bert Lloyd's writing is a bit of both 'academic' and 'polemic'. When I first started out, haltingly, in music journalism (early 70s), I'd get single-spaced reams of 'notes', far longer than the original pieces, on what I should have said and how ought to have attributed my assertions, from him. So perhaps with him it's a case of do what I say, not what I do/did.