Zygalakēs, G. D. (1922). Hellēnikon alphabētarion: Meros prōton egkekrimenon kata ton teleutaion diagōnismon ton didaktikōn vivliōn dia to etos 1921-1922 kai exēs. New York: Greek-American News Co..
Chicago Style CitationZygalakēs, Geōrgios D. Hellēnikon Alphabētarion: Meros Prōton Egkekrimenon Kata Ton Teleutaion Diagōnismon Ton Didaktikōn Vivliōn Dia to Etos 1921-1922 Kai Exēs. New York: Greek-American News Co., 1922.
MLA CitationZygalakēs, Geōrgios D. Hellēnikon Alphabētarion: Meros Prōton Egkekrimenon Kata Ton Teleutaion Diagōnismon Ton Didaktikōn Vivliōn Dia to Etos 1921-1922 Kai Exēs. New York: Greek-American News Co., 1922.