Dyfyniad APA

PARKER ,S P.,ED. (1982). MC GRAW HILL ENCYCLOPEDIA OF SCIENCE AND TECNOLOGY. MCGRAW HILL BOOK CO.

Dyfyniad Arddull Chicago

PARKER ,S P.,ED. MC GRAW HILL ENCYCLOPEDIA OF SCIENCE AND TECNOLOGY. NEW-YORK: MCGRAW HILL BOOK CO, 1982.

Dyfyniad MLA

PARKER ,S P.,ED. MC GRAW HILL ENCYCLOPEDIA OF SCIENCE AND TECNOLOGY. MCGRAW HILL BOOK CO, 1982.

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