- Print ISBN 9780444520135
- Electronic ISBN 9780080461472
"An indispensable tool for scholars and research workers in mathematics and the mathematical sciences."
-Mathmatical Reviews, 2007
"The book is an introduction to the calculus of relations and the theory of relation algebras (r.a.s): the reader need not have any preliminary knowledge of the subject… [T]he book contains very extensive material (the bibliography, in particular) both on relation algebras and from related areas and may serve as a handbook for a researcher."--ZentralblattMATH