Dyfyniad APA

-. (1980). The world book illustrated home medical encyclopedia. World Book-Chilcraft International.

Dyfyniad Arddull Chicago

-. The World Book Illustrated Home Medical Encyclopedia. Chicago: World Book-Chilcraft International, 1980.

Dyfyniad MLA

-. The World Book Illustrated Home Medical Encyclopedia. World Book-Chilcraft International, 1980.

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