Dyfyniad APA

F Hefts. (1991). Growth factors and alzheimer's disease. Berlin: Spring-Verlag.

Dyfyniad Arddull Chicago

F Hefts. Growth Factors and Alzheimer's Disease. Berlin: Spring-Verlag, 1991.

Dyfyniad MLA

F Hefts. Growth Factors and Alzheimer's Disease. Berlin: Spring-Verlag, 1991.

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