A Course in church music : vol. 1 : Gregorian chant - Incera, Pedro; Corera, Jaime (Manila : The Marian Center Publications, 1963)
Includes index.
"Book I - the fundamentals of Georgian chant, book II - the rhythm of Georgian chant". -- Title page.
p. 137-139
Keywords: Chants (Plain, Georgian, etc.) -- Study and teaching