APA   Click to copy
Clapp, J., & Isakson, S. (2018). Chapter 2 - Speculating on Commodities.

Chicago/Turabian   Click to copy
Clapp, J., and S. Isakson. “Chapter 2 - Speculating on Commodities” (2018).

MLA   Click to copy
Clapp, J., and S. Isakson. Chapter 2 - Speculating on Commodities. 2018.

@article{j2018a,
  title = {Chapter 2 - Speculating on Commodities},
  year = {2018},
  author = {Clapp, J. and Isakson, S.}
}