Dyfyniad APA

Jäppinen, P. (1987). A mortality study of Finnish pulp and paper workers.

Dyfyniad Arddull Chicago

Jäppinen, P. A Mortality Study of Finnish Pulp and Paper Workers. 1987.

Dyfyniad MLA

Jäppinen, P. A Mortality Study of Finnish Pulp and Paper Workers. 1987.

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