Dear David,
The ref you're after may be

Munsell, A.H. 1976 *Munsell Book of color : matte finish collection*
Baltimore, Md.: Munsell color/Macbeth (ring-bound edition with 40 hue charts
in 21 plastic leaves)

Dan Hicks
University of Bristol

----- Original Message -----
From: david petts <[log in to unmask]>
> Has anyone got the full bibliographic reference to the Munsell Colour
> Charts?