Barker, Philip (1993) Techniques of archaeological excavation, 3rd ed., London : Batsford, Westman, Andrew (Ed.) (1994) Archaeological site manual, 3rd. ed., London : Museum of London,
Barker, P!hilip (1993) Techniques of archaeological excavation, 3rd ed., Lond.on : Batsfo?rd, Westman, Andrew (.Ed.) (1994) Archaeological site manual, 3rd. ed., London : Museum of London,