You can download A Text Book of Veterinary Parasitology by Chen free in pdf format.
The book is intended for undergraduate students. Care has been taken about the matter which is frequently left out during routine lectures delivered to the students. The book has been written as per the course of VCI. The most noticeable thing about this book is that the important matter has been described somewhat in detail, the less important matter has been described in brief and the unimportant matter has been omitted. The student of average capacity will not fall in question what to read and what not to read at the stage of undergraduate level. It has been tried to incorporate those details which are useful and described very meticulously. The diagrams have been placed and focussed in order to make the matter more easy.