Dyfyniad APA

(1990). 1990 Guide and directory - Food processing. Washington, D.C: A Putman.

Dyfyniad Arddull Chicago

1990 Guide and Directory - Food Processing. Washington, D.C: A Putman, 1990.

Dyfyniad MLA

1990 Guide and Directory - Food Processing. Washington, D.C: A Putman, 1990.

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