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Dyfyniad Arddull ChicagoAdmstone. A Laboratory Mannual of Vertebrate Embryology. 2nd ed. John Wiley, 1966.
Dyfyniad MLAAdmstone. A Laboratory Mannual of Vertebrate Embryology. 2nd ed. John Wiley, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.