Here's exactly the book you are looking for: [<img src="http://ecx.images-amazon.com/images/I/41ts2IEuyfL.jpg">](http://www.amazon.com/Maximum-Likelihood-Estimation-Misspecified-Models/dp/0762310758) Twenty years later stands for Halbert White's paper on the [general sorts of misspecifications in likelihood models](http://econpapers.repec.org/article/ecmemetrp/v_3a50_3ay_3a1982_3ai_3a1_3ap_3a1-25.htm). It is arguably more readable than the original [Huber (1967)](https://projecteuclid.org/euclid.bsmsp/1200512988) paper.