Hirschfeld, G. (1973). The people: Growth and Survival. First cycle. Aldine Published for the Council for the Study of Mankind.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua i Stíl Chicago (17ú heag.)
Hirschfeld, Gerhard. The People: Growth and Survival. First Cycle. Chicago: Aldine Published for the Council for the Study of Mankind, 1973.
Cóipeáladh chuig an ngearrthaisce go rathúil é
Níorbh fhéidir cóipeáil chuig an ngearrthaisce
Lua MLA (9ú heag.)
Hirschfeld, Gerhard. The People: Growth and Survival. First Cycle. Aldine Published for the Council for the Study of Mankind, 1973.
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.