Dyfyniad APA

(1961). Population by age and sex: By municipality as of 1960. s.n.

Dyfyniad Arddull Chicago

Population by Age and Sex: By Municipality as of 1960. [S.l: s.n, 1961.

Dyfyniad MLA

Population by Age and Sex: By Municipality as of 1960. s.n, 1961.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.