
I have most of the recommended books, and even have some that I wish I hadn't wasted my money on.
The best I ever bought was back in the 70's and have never found one to beat it. Although feeding has leaped forward since those days, bitches still whelp like they always did! :-)
Dog breeding for professionals is still available in the states if you search for it. It has the best ever advice on delivering malpresentations that I have ever read. And has saved lives definitely for me.