Demographic yearbook : 1957, ninth issue = Annuaire demographique : 1957, neuvieme edition
United Nation. Departement of Economic and Social Affairs. Statistical Office
United Nation, 1957
Buku Referensi
Annuaire 1974-1975
[T.t.] [t.p.] 1974
Buku Teks
Annuaire 1974-1975
[T.t.] [t.p.] 1974
Buku Teks
Annuaire 1974-1975
[T.t.] [t.p.] 1974
Buku Teks
Annuaire 1974-1975
Universite du Quebec, 1974
Buku Referensi