(1977). The 1977 world book year book.: The annual supplement to the world book encyclopedia (ed.). Field enterprises educational corporation.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua i Stíl Chicago (17ú heag.)
The 1977 World Book Year Book.: The Annual Supplement to the World Book Encyclopedia. ed. Chicago: Field enterprises educational corporation, 1977.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
The 1977 World Book Year Book.: The Annual Supplement to the World Book Encyclopedia. ed. Field enterprises educational corporation, 1977.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.