Dyfyniad APA

Helga, Greene, C., & Olkowski, W. (1975). The city peoples book of raising food. Rodale Press.

Dyfyniad Arddull Chicago

Helga, Cathy Greene, and William Olkowski. The City Peoples Book of Raising Food. Pennsylvania: Rodale Press, 1975.

Dyfyniad MLA

Helga, et al. The City Peoples Book of Raising Food. Rodale Press, 1975.

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