APA Style

Underhill, L, J. (2019). Defining the Digital Economy: The Structure of the Digital Economy in Focus (February 15, 2019). : ‎ Independently published.

MLA Style

Underhill, Lori, Jo. "Defining the Digital Economy: The Structure of the Digital Economy in Focus". February 15, 2019 : ‎ Independently published, 2019. Text.