Joe Felsenstein in the comments:
The books you have listed are good ones, by fine people. But may I immodestly suggest a book of mine? If you want to work your way through the theory of theoretical population genetics, I have set of notes for my Genome 562 course, a textbook. It is a freely-downloadable PDF (start with my website by clicking on my name in this comment). It’s not for everyone but I think those interested in knowing how the theory actually works in more detail will benefit from it. As it’s free, I have no monetary interest in calling your attention to it, just pure ego. (And if you want a one-locus population genetics simulation program, try PopG at my lab’s website too — Google “Felsenstein PopG”).
Many of the books I recommended below are rather expensive. Theoretical Evolutionary Genetics (PDF) is not. Unfortunately much of the discourse of contemporary science is beyond the financial means of much of the world’s population, whether it be in university press textbooks or gated journals. So I’m quite happy in putting up a link to this text-in-progress.
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