Dyfyniad APA

Hawksworth,D L. (1991). Biodiversity of mocroorganisms and invertebrates: Its role in sustainable agriculture proceedings of the WEFSA London,26-27 July ,1990. CAB international.

Dyfyniad Arddull Chicago

Hawksworth,D L. Biodiversity of Mocroorganisms and Invertebrates: Its Role in Sustainable Agriculture Proceedings of the WEFSA London,26-27 July ,1990. UK: CAB international, 1991.

Dyfyniad MLA

Hawksworth,D L. Biodiversity of Mocroorganisms and Invertebrates: Its Role in Sustainable Agriculture Proceedings of the WEFSA London,26-27 July ,1990. CAB international, 1991.

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