Lawrence, D. P. (2013). Impact assessment: Practical solutions to recurrent problems and contemporary challenges (2nd ed.). John Wiley & Sons.

Lawrence, David P. Impact Assessment: Practical Solutions to Recurrent Problems and Contemporary Challenges. 2nd ed. Hoboken, N.J.: John Wiley & Sons, 2013.

Lawrence, David P. Impact Assessment: Practical Solutions to Recurrent Problems and Contemporary Challenges. 2nd ed. John Wiley & Sons, 2013.