Wrigley, N., & Clark, G. (1997). Exit, the firm and sunk costs: Re-conceptualising the corporate geography of disinvestment and plant closure. Sage Publications.

Wrigley, N., and G. Clark. Exit, the Firm and Sunk Costs: Re-conceptualising the Corporate Geography of Disinvestment and Plant Closure. Sage Publications, 1997.

Wrigley, N., and G. Clark. Exit, the Firm and Sunk Costs: Re-conceptualising the Corporate Geography of Disinvestment and Plant Closure. Sage Publications, 1997.