แม่แบบ:R:grc:Beekes:1969
หน้าตา
Beekes, Robert S.P. (1969) The Development of the Proto-Indo-European Laryngeals in Greek, The Hague–Paris: Mouton, →ISBN
Beekes, Robert S.P. (1969) The Development of the Proto-Indo-European Laryngeals in Greek, The Hague–Paris: Mouton, →ISBN