Regina coeli,
missa for four-part chorus of mixed voices a cappella.
Practical performing edition by Rudolf Ewerhart.

APA Citation

Palestrina, G. Pierluigi da. (1963). Regina coeli: missa for four-part chorus of mixed voices a cappella. Wiesbaden: Breitkopf & Hartel.

MLA Citation

Palestrina, Giovanni Pierluigi da, 1525?-1594. Regina Coeli: Missa for Four-part Chorus of Mixed Voices a Cappella. Wiesbaden: Breitkopf & Hartel, 1963.

Warning: These citations may not always be complete (especially for serials).