Introduction to food engineering.
  MLA
  Singh, R.Paul, and Dennis R Heldman. Introduction to Food Engineering. 4th ed. Amsterdam: Elsevier, 2009.
  APA
  Singh, R., & Heldman, D. R. (2009). Introduction to food engineering. 4th ed. Amsterdam: Elsevier.
  Chicago
  Singh, R.Paul, and Dennis R. Heldman. Introduction to Food Engineering. 4th ed. Amsterdam: Elsevier, 2009.