Bigger, F. J. (1907). Abstract of paper on Alexander Mitchell, the famous blind engineer of Belfast. Portr.
Lua i Stíl Chicago (17ú heag.)Bigger, Francis Joseph. Abstract of Paper on Alexander Mitchell, the Famous Blind Engineer of Belfast. Portr. 1907.
Lua MLA (9ú heag.)Bigger, Francis Joseph. Abstract of Paper on Alexander Mitchell, the Famous Blind Engineer of Belfast. Portr. 1907.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
