Dyfyniad APA

Sandahl, B. (1975). Seasonal and secular trends in reproductive wastage in Sweden. s.n.].

Dyfyniad Arddull Chicago

Sandahl, Björn. Seasonal and Secular Trends in Reproductive Wastage in Sweden. Lund [Sweden: s.n.], 1975.

Dyfyniad MLA

Sandahl, Björn. Seasonal and Secular Trends in Reproductive Wastage in Sweden. s.n.], 1975.

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