References for Pollard's Lambda and Rho Methods

1. A short survey
2. Chapter 19.4 from Modern Computer Algebra by von zur Gathen and Gerhard
3. Chapter 5.2 from Prime Numbers, a computational perspective by Crandell and Pomerance
   
4. Kangaroos, Monopoly and Discrete Logarithms by J.M. Pollard
5. Kuskal's Card Trick by J.M. Pollard
6. Monte Carlo Methods for Index Computation mod p by J.M. Pollard