Nikolskii, G. V. Fish population dynamics.
Dyfyniad Arddull ChicagoNikolskii, George V. Fish Population Dynamics.
Dyfyniad MLANikolskii, George V. Fish Population Dynamics.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
Nikolskii, G. V. Fish population dynamics.
Dyfyniad Arddull ChicagoNikolskii, George V. Fish Population Dynamics.
Dyfyniad MLANikolskii, George V. Fish Population Dynamics.