However, given that these were published under an educational rather than commercial imprint and given what I've been writing since this was published, I suspect that not many people even know about this one. So I'd like to introduce you to my firstborn:
http://www.amazon.co.uk/exec/obidos/ASIN/0582122104/qid=1133046613/sr=8-2/ref=sr_8_xs_ap_i2_xgl/203-2478837-5923123