The Art of Consultancy by Calvert Markham (2020, Paperback)

Practical Management Consultancy By Calvert Markham. 97818535572

Practical Management Consultancy by Markham, Calvert By Calvert

Practical Management Consultancy By Calvert Markham. 97818535519

Here Come The Judge! by "Pigmeat" Markham with Bill Levinson Popular Library VG

Practical Management Consultancy-Calvert Markham, 9781853551901

The Yorkshire Weather Book by Bill Foggitt/Len Markham

West with the Night by Beryl Markham (1988, PB, Penguin, Very Good)