Nick Weldon put me onto the fact that most jazz real books have the chords and melody wrong for this fine bossa. So I set about transcribing from a few different recording and came up with this version which is more true to Jobim's original intention.
Noticeable differences from most wrong real books include:
Melody in A sections starts on beat 2.
Chords at bars 9-11 do a classic cadence from G- to Dmaj7.
Bar 13 melody starts with A natural and uses Ab in the answering phrase at the end of the bar.
Chromatic descent bar 29 to the bridge (which seems to deny key of A and re-affirm F) with a melody that does not fit the English words.