Sources
18. Sonata

18.B.1

1 leaf, 4° oblong format with 10 staves. The music appears on the recto only. At the end of the piece are the signature "Giacomo Puccini" ancd the indication "a capo". 
On the verso: "Tempo di marcia" in B flat major, written in a different hand. 

Formerly in private collection of the Della Nina family, Chicago.
No. 10 in Bernardoni 2017a, p. 102, also including a partial transcription of the first 4 bars of the source.

18.D.1

Copied source	Portion	Bibliographic reference	Page number
18.B.1		Guidotti 2017 Fabrizio Guidotti, "Le copie della collezione Dalla Nina (facsimili)." In Giacomo Puccini organista: Il contesto e le musiche, edited by Fabrizio Guidotti, 119-153. Florence: Leo S. Olschki Editore, 2017.	p. 135.

18.E.1

First and critical editions:
Composizioni per organo: Sonate, versetti, marce, a cura di Virgilio Bernardoni.
Edizione Nazionale delle Opere di Giacomo Puccini, series Opere musicali, vol. II/2.1.
Carus Verlag, Stuttgart, 2018.
PN CV 56.003, pp. 20-21.

Based on 18.B.1.