bibliography about implementation of IIR filters I need to implement a 6th order IIR filter. The filter I need to implement is the A-weighting. I've simply used the bilinear function of Matlab with an fs of 20Khz. I need to implement this over the LPC1769 micro-controller. The application is mainly the filter and the communication with the ADC and the LCD to show the RMS value of the signal after being processed by the filter.

I've been reading the book "Real-Time Digital Signal Processing..." of Kuo, but I need more detail in the implemetation considerations.Could you recommend me some books or papers about this? 

I would like to know more about how to implement filters, the implications of the ordering choise of the biquad stages, or the meaning of the parameters that are used in the fdatool of matlab at the moment of quantizing a filter.
Okay, according to the wikipedia article you cited (with an appropriate substitution in notation):

$$ \Big|H(j2\pi f)\Big|^2= 10^{\frac{2.00}{10}} \times \frac{12194^4\cdot f^8}{\big(f^2+20.6^2 \big)^2(f^2+107.7^2)(f^2+737.9^2)\big(f^2+12194^2\big)^2}$$

and the dB amplitude curve is this:

$$A(f)=10\log_{10}\left(\Big|H(j2\pi f)\Big|^2\right) $$

I hope you can see how I modified the language and that it is equivalent.  The purpose is to express this transfer function as an $H(s)$ and get where (and how many) the poles as zeros are.

Now you gotta factor some more shit out.  Oh, this is laborious and painful.  Sorry, unless someone wants to finish this answer, I will have to return to it.