You can download Dosage Calculations for Veterinary Nurses and Technicians by Terry Lake free in pdf format.
I love this book! It is so good. It clearly explains calculations that vet techs need to know. I am a vet tech studying to take the certification exam. This book helped me quite a lot with some of the math that was not explained as well in other books. I would difinitely recommend this book. It even has a chapter on anaesthesia applications, which was not very well covered in my other texts. Overall, a very helpful book that is well woth what I paid for it.