APA   Click to copy
Clapp, J., & Martin, S. J. (2013). Food and agriculture. Routledge Handbook of Global Environmental Politics.

Chicago/Turabian   Click to copy
Clapp, J., and Sarah J. Martin. “Food and Agriculture.” Routledge Handbook of Global Environmental Politics (2013).

MLA   Click to copy
Clapp, J., and Sarah J. Martin. “Food and Agriculture.” Routledge Handbook of Global Environmental Politics, 2013.

@article{j2013a,
  title = {Food and agriculture},
  year = {2013},
  journal = {Routledge Handbook of Global Environmental Politics},
  author = {Clapp, J. and Martin, Sarah J.}
}