Harling, W. Franke

Harling Frank, W.

Opernlexikon/Opera catalogue/Lexique des opéras/Dizionario operistico

Harling, William Franke(1887–1958)

DEUMM Online

Harling, William Franke(1887–1958)

Muzička enciklopedija

HARLING, William Franke(1887–1958)

Algemene muziek encyclopedie

Harling, William Franke(1887–1958)

Dictionary of American classical composers