Based on the publishing and copyright information provided, is the book understanding cloning suitable for use in a research project about cloning conducted in the year 2011?

The book entitled Understanding Cloning published in the year 2011 is no longer suitable to be used as reference in a research because the copyright date is already obsolete. Considering the fact that cloning is among the disciplines that is largely influence by science and science is constantly changing. Therefore, the newer the reference source for cloning is the better. 

The answer is a hope this