Applied and Engineering Mathematics

• Reliability: Probabilistic Models and Statistical Methods L. Leemis
  Practical overview of many topics in reliability theory.
  
• Computer Networks and Systems: Queueing Theory and Performance Evaluation T. Robertazzi
  A better bibliography than text. Interesting ideas that aren't proven well or backed up sufficiently.
  
• Fundamentals of Stochastic Networks O. Ibe
  Generally good introductory text to queueing and random networks.