Pettit, P., (1992). Collins, D. and Lorimer, D. (eds). 1989. Excavation at the Mesolithic site on West Heath, Hampstead 1976-1981.. Papers from the Institute of Archaeology. 3, pp.86–87. DOI: http://doi.org/10.5334/pia.25

Pettit P. Collins, D. and Lorimer, D. (eds). 1989. Excavation at the Mesolithic site on West Heath, Hampstead 1976-1981.. Papers from the Institute of Archaeology. 1992;3:86–7. DOI: http://doi.org/10.5334/pia.25

Pettit, P. (1992). Collins, D. and Lorimer, D. (eds). 1989. Excavation at the Mesolithic site on West Heath, Hampstead 1976-1981.. Papers from the Institute of Archaeology, 3, 86–87. DOI: http://doi.org/10.5334/pia.25

Pettit, Paul. 1992. Collins, D. and Lorimer, D. (eds). 1989. Excavation at the Mesolithic site on West Heath, Hampstead 1976-1981. 3: 86–87. DOI: http://doi.org/10.5334/pia.25