J M Vincent. (1970). A manual for the practical study of the root-nodule bacteria. Oxford: Blackwell scienctific Publication.
Dyfyniad Arddull ChicagoJ M Vincent. A Manual for the Practical Study of the Root-nodule Bacteria. Oxford: Blackwell scienctific Publication, 1970.
Dyfyniad MLAJ M Vincent. A Manual for the Practical Study of the Root-nodule Bacteria. Oxford: Blackwell scienctific Publication, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.