Maertens, Thierry [et al.]..
Guide for the Christian assembly. Volume 3.. Holy Thursday to Trinity Sunday. /
Thierry Maertens and Jean Frisque 
. - Notre Dame  : Fides Publishers, Inc.,  1967 
. - 227 p.  22 cm. 
<br/><br/> "A background book of the Mass. Revised to conform to the new Lectionary.".