Introduction to Unconstrained Optimization with R
  MLA
  Mishra, and Bhagwat Ram. Introduction to Unconstrained Optimization with R. Springer Singapore, 2019.
  APA
  Mishra, M., & Ram, B. (2019). Introduction to Unconstrained Optimization with R. Springer Singapore.
  Chicago
  Mishra, and Bhagwat Ram. Introduction to Unconstrained Optimization with R. : Springer Singapore, 2019.