Hyman, L. H. (1959). Invertebrates, Vol.5: Smaller coelomate groups chaetognatha, hemichordata, pogonophora, phoronida, ectoprocta, brachiopoda sipunculida the coelomate bilateria.
Dyfyniad Arddull ChicagoHyman, Libbie Henrietta. Invertebrates, Vol.5: Smaller Coelomate Groups Chaetognatha, Hemichordata, Pogonophora, Phoronida, Ectoprocta, Brachiopoda Sipunculida the Coelomate Bilateria. McGraw-Hill Book Co., New York, 1959.
Dyfyniad MLAHyman, Libbie Henrietta. Invertebrates, Vol.5: Smaller Coelomate Groups Chaetognatha, Hemichordata, Pogonophora, Phoronida, Ectoprocta, Brachiopoda Sipunculida the Coelomate Bilateria. 1959.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.