You can purchase a copy of The Road to Stockholm at the following sites.

In the United States:

Barnes and Noble is offering a discount here: Road to Stockholm: Nobel Prizes, Science, and Scientists
For the US Amazon.com, click here.

In Europe:

UK Amazon offers a discount, click here.

Other related books by Hargittai:

Candid Science: Conversations with Famous Chemists, Imperial College Press, London, 2000 (Buy on Amazon)

Candid Science II: Conversations with Famous Biomedical Scientists, Imperial College Press, London, 2002