This 27th edition is scheduled for release in September 2018. Until then, the 26th edition (2017) is still available.

Twenty-seventh Edition, 2018
Volumes I and II sold together
ISBN 978-92-95108-57-8
29.7 x 21 cm, Vol. I & Vol. II: approx. 800 pp.
Ref.: A 246, Price: 100 €